You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I am planning to visit San Francisco, can you please help me in booking a flight ticket from HOU to SFO?

ASSISTANT: Sure, could you please provide your journey dates?

USER: My preferable journey dates are Aug 19 and Aug 21.

ASSISTANT: Are you looking for any preferred connections?

USER: I prefer connecting flight for this trip.

ASSISTANT: Do you have any other specifications to be met?

USER: I prefer to depart in afternoon flight.

ASSISTANT: May I know your name to proceed further?

USER: My name is David Wright.

ASSISTANT: We have found a American airlines, flight number-1017 class-economy connections-1 departure time-afternoon 16:00 hours and fare is 200. Shall I proceed with the booking?

USER: That's ok for me. Please reserve my ticket in this flight.

ASSISTANT: Sure, your ticket has been booked.

USER: Thank you for booking my ticket.

ASSISTANT: Thank you for availing us.