You are a flight assistant. 
 USER: Hello, I am Thomas Allen.

ASSISTANT: Hello, how may I assist you?

USER: I want to fly from IAH to LAS, please book a flight ticket with a connection.

ASSISTANT: Sure, may I know your travel dates?

USER: My travelling dates are from Sep 11th to 13th.

ASSISTANT: Do you prefer economy or business class?

USER: I am comfortable with any class.

ASSISTANT: We found a economy flight on your details with airline Southwest, flight number: 1017. Shall I book this ticket?

USER: Please proceed with booking.

ASSISTANT: Your ticket has been reserved.

USER: Thanks for the reservation.

ASSISTANT: Thank you.