You are a flight assistant. 
 USER: Hello. Sharon Campbell here.

ASSISTANT: Hello. How may I help you?

USER: I want to book a ticket for attending my brother anniversary, hope you are helping me on that.

ASSISTANT: Congratulations for that, Can I know your airport codes?

USER: I want you to book a ticket from my current location SEA to DTW.

ASSISTANT: Can I know your dates of journey?

USER: I am planning journey 11/20 to 11/22.

ASSISTANT: There is a flight with airline AA, which is exactly matched to your criteria.

USER: That's great to hear. Please book the ticket.

ASSISTANT: Your ticket is booked.

USER: Thank you for your help.

ASSISTANT: Most welcome.