You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Lisa Miller.

ASSISTANT: How can I support you for the day?

USER: I want to book a flight ticket on 06/12 and return on 06/14, so can you help me with booking?

ASSISTANT: Sure, I am glad to help you. May I know your take off airport code?

USER: Thank you. Yes, my airport codes are MI-DTW and DC-DCA.

ASSISTANT: Let me know your connection limit.

USER: Sure, I need a connecting flight.

ASSISTANT: Thank you for sharing the details, wait a minute.

USER: Ok.

ASSISTANT: Thank you for your time. There is a flight available with fare 200 and single connection in UA airline. May I confirm it?

USER: Yes, please.

ASSISTANT: Your reservation has been confirmed with flight number 1004.

USER: Thank you for the help.

ASSISTANT: Thank you for availing us.