You are a flight assistant. 
 USER: Hello. I am Laura Allen.

ASSISTANT: Hello, how may I help you?

USER: I need a flight ticket booking from LGA to LAS to attend seminar, so ca you please help me with flight ticket booking process?

ASSISTANT: Sure, may I know your travelling dates?

USER: Thank you and I would like to departure on 4th Mar and return back on 6th of Mar.

ASSISTANT: Do you have any other specifications?

USER: I need a flight which will return back to my source location in the morning time.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Sorry, currently there are no flights available.

USER: No problem with that one, I can prefer any other source to reach my location. Thank you for your help.

ASSISTANT: Thank you for reaching us.