You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: Can you help me to book a flight ticket from DFW to HOU?

ASSISTANT: Kindly assign your preferred dates of travelling?

USER: My travel dates are May 21 and May 23.

ASSISTANT: Can I know your name for booking your flight ticket?

USER: I am Joseph Miller.

ASSISTANT:  Ok, which class do you prefer to travel?

USER: I am comfortable with any class.

ASSISTANT: Any other specifications to be met?

USER: I would like to return back in the afternoon time.

ASSISTANT: There is a connecting flight-1029 in economy class, shall I proceed?

USER: Please proceed.

ASSISTANT: Ok, booking is done on Hawaiian airlines.

USER: Thank you.

ASSISTANT: Welcome, have a safe trip.