You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I serve you?

USER: David Thompson here.

ASSISTANT: Nice to meet you David.

USER: Can you please help me in booking the ticket from IAD to MSP? As I'm planning to visit Minneapolis.

ASSISTANT: Sure, tell me your travel dates please?

USER: Sure, my planned departure and return travel dates are 09/12 and 09/14.

ASSISTANT: Please wait for a moment.

USER: Sure, take your own time.

ASSISTANT: Thanks for waiting. I have found southwest airlines which flies with one connection.

USER: That's fine for me, you can proceed for booking the ticket.

ASSISTANT: I. Yes, I have confirmed your flight ticket with flight number 1009.

USER: Thank you so much for your help.

ASSISTANT: Thank you.