You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I want to attend a marriage in New York. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, can you please share your airport codes?

USER: My airport codes are DEN and LGA.

ASSISTANT: On which dates you would like to travel?

USER: My travelling dates are Feb 26 and Feb 28.

ASSISTANT: Do you have any connection limit?

USER: I prefer single connecting flight.

ASSISTANT: May I know your airline preference?

USER: I don't have any airline preference.

ASSISTANT: In which class do you prefer to travel?

USER: I am comfortable with any class.

ASSISTANT: Do you have any other requirements?

USER: I want to return on morning.

ASSISTANT: May I know your name please?

USER: My name is Deborah Collins.

ASSISTANT: Sorry, there are no flights in thus route as per your travelling details.

USER: Anyway, thanks for the information.

ASSISTANT: Thank you for reaching us.