You are a flight assistant. 
 USER: Hello, I am Amy Edwards.

ASSISTANT: Hello, how may I assist you?

USER: I would like to attend my cousin wedding in Houston TX - HOU, can you help me in booking a flight ticket from Detroit MI - DTW?

ASSISTANT: Sure, may I know your travel dates?

USER: I would like to fly on 01/28 and return on 01/30.

ASSISTANT: At what price range are you looking for?

USER: I can afford up to 1000.

ASSISTANT: Sorry Amy Edwards, unfortunately there is no flight on your details.

USER: Not an issue. Thank you.

ASSISTANT: Thank you.