You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello,. How can I support you today?

USER: I am Mary Hall. I want to book a flight ticket under 200 fare.

ASSISTANT: Can you forward your airport codes?

USER: I am planning to celebrate my birthday at MGM Grand Detroit in Detroit DTW. My origin is CA - SFO.

ASSISTANT: Share your travel dates.

USER: Journey dates are from 05/04 to 05/06.

ASSISTANT: We have found a flight with AA airline, flight number:1003 and a connecting flight. Shall I proceed with booking?

USER: Ok, please reserve the ticket.

ASSISTANT: Your ticket has been reserved.

USER: Ok.

ASSISTANT: Thank you for availing us. Have a nice day.

USER: Thank you for your service.