That works, but it doesn't sound very natural/common. Your closing remarks also depend on how well you know the recipient of the message. Since I am guessing you don't know them well, my first suggestion would probably be best. Generally, these are accepted closers for a business email.
I look forward to hearing from you soon (probably the best option)
I hope to hear from you soon
I am hoping to hear back from you soon
I am looking forward to your reply