You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Could you book my ticket from IAH to CLT?

ASSISTANT: Sure, may I know your travel dates?

USER: My itinerary dates are Nov 24 and Nov 26.

ASSISTANT: At what time do you like to travel?

USER: I am comfortable to travel at any time.

ASSISTANT: Do you prefer economy or business class?

USER: I prefer economy class.

ASSISTANT: May I know your name?

USER: Michelle Phillips here.

ASSISTANT: We found a flight on your details with Southwest Airlines, flight number: 1023. Shall I book this ticket?

USER: Book my ticket.

ASSISTANT: Your ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you.