The Cafe

There is a cafe near my office (.) where I take lunch (have lanch there) sometime. I had lunch (lanch) there (in this cafe) yesterday and saw an interesting situation. A (The) girl waited (her dish. She) waited a long time for her dish, (while.) although she only (to) ordered (only) hamburger and coffee.
The girl protested at the delay (resented,) but the waiter dismissed/ignored/brushed off (hectored) her protests and did not help her. (helped girl.) I work in customer services and I am saddened (sadly) when I see such poor service.

I'm pretty sure they will have lost the girl's custom now. 

Hello,

According to me corrections will be as follow.

The cafe

There is a cafe near my office. I take lunch there sometime. Yesterday have taken lunch and saw a interesting situation. There was a girl who was waiting for her dish from long time, although she had ordered only hamburger and coffee.

The girl resented, but waiter hectored and did not help girl. I work in customer services and I became sad when sees such situations.