You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Myself Emma Mitchell. I would like to book a reservation from LGA to ATL for attending mu cousin's reception.

ASSISTANT: Sure, may I know your travel dates?

USER: My dates are from 04/17 to 04/19.

ASSISTANT: Sorry Emma, I cannot find any flight with your request.

USER: No issues. Thanks for checking.

ASSISTANT: It's my pleasure.