You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am Brandon Collins. I have to attend a Music Concert at Seattle, could you please help me with booking a flight ticket?

ASSISTANT: Sure, may I know your airport codes please?

USER: My nearest source airport code is DTW and destination airport code is SEA.

ASSISTANT: Ok, may I know your travel dates please?

USER: I would like to take off on 06/15 and return on 06/17.

ASSISTANT: Thanks for your patience. I have found Delta airlines which flies with one connection.

USER: Please proceed with the booking if the ticket fare is less than 200.

ASSISTANT: Sure, your flight ticket has been confirmed now.

USER: I really appreciate your help, thank you for your service.

ASSISTANT: Thank you.