You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How could I aid you today?

USER: I want to book a ticket from DFW to SEA. Could you book a ticket?

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

USER: Departure is Sept, 19 and return date is Sept, 21.

ASSISTANT: Please provide your specifications.

USER: I prefer connecting flight.

ASSISTANT: Can I know your name please?

USER: My name is Anna Mitchell.

ASSISTANT: We found a flight with an airline Spirit of flight 1029 in an economy class with single connection. Shall I proceed with the booking?

USER: Please book a flight.

ASSISTANT: Your seat has been confirmed.

USER: Thank you.

ASSISTANT: Thank you.