You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I be of you help?

USER: I would like to book a ticket with the name Shirley Lee to consult my family doctor, please help me with booking a direct flight.

ASSISTANT: Sure, may I know when would you like to travel?

USER: Sure, I want to fly on 12/05 and will catch my return flight on 12/07.

ASSISTANT: Kindly share your airport codes.

USER: My nearest airport is New York, NY-EWR is my source and landing would be at DTW.

ASSISTANT: Ok, there is a flight on your route. Southwest airline and the flight number is 1002. The fare is 200.

USER: Yes, you can.

ASSISTANT: Your booking has been processed.

USER: Thank you for the help.

ASSISTANT: Thank you for choosing our service.