How to say "......." in korean?
Guys, good day everyone.
Need ur help, I have to meet korean group ariving from Korea to RUssia.
Therefore, how to say:
Hello guys, im ur guide for this days. Now we going to hotel and then we will eat.
Actually i know how to say common setnences in korean but i need to know grammar like "then". Or maybe you can give me a tip of commonly used expretions in situations like mine. Also, what polite level should i choose? They are 14 years old kids, as for my age - im 21. Thx guys, sorry for little bit frustrating question.

Question

How to say "......." in korean?
Guys, good day everyone.
Need ur help, I have to meet korean group ariving from Korea to RUssia.
Therefore, how to say:
Hello guys, im ur guide for this days. Now we going to hotel and  then we will eat.
Actually i know how to say common setnences in korean but i need to know grammar like "then". Or maybe you can give me a tip of commonly used expretions in situations like mine. Also, what polite level should i choose? They are 14 years old kids, as for my age - im 21. Thx guys, sorry for little bit frustrating question.

Answer

Hello guys, im ur guide for this days. Now we going to hotel and then we will eat.
안녕하세요, 여러분. 이번 여행에서 제가 여러분의 가이드가 될에요. 지금부터 호텔로 가서 식사를 할 예정이에요.

I think this tone will be OK, when you guide middle school students 
You don't need to so polite way, as you talk to seniors.
However it is recommendable that you keep saying in a polite way as a guide.
For example, if you use verb form as ~요 rather than ~다, it will be OK.

Answer

Hello guys, im ur guide for this days. Now we going to hotel and then we will eat.

안녕하세요, 여러분. 이번 여행에서 제가 여러분의 가이드가 될 거에요. 지금부터 호텔로 이동한 후에 식사를 할 예정이에요.

Sorry I found out that there is a misspell and I would like to add a different expression too.

될에요 ==> 될 거에요.
호텔로 가서 / 호텔로 이동한 후에 (either one is OK)