You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you today?

USER: I would like to visit Denver museum, please help me in booking a ticket from HOU to DEN.

ASSISTANT: Sure, may I know your planned journey dates?

USER: My planned journey dates are on May 5 and May 7.

ASSISTANT: Do you have any particular time for departing and returning?

USER: I am fine with any timings.

ASSISTANT: Which class do you prefer either economy or business?

USER: I am comfortable with any class.

ASSISTANT: Do you have any other specifications?

USER: I prefer a connecting flight.

ASSISTANT: May I know your name please?

USER: My name is Frank Martinez.

ASSISTANT: American Airlines are having a flight-1003 with single connection limit and the ticket fare is 400. Shall I book it?

USER: Ok, please proceed for booking.

ASSISTANT: Frank Martinez, your booking is done in business class.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us, have a safe journey.