You are a flight assistant. 
 USER: Hello, I am Christopher Young.

ASSISTANT: Hello, how can I help you?

USER: I want to attend a Music festival at Oakland, can you please book a ticket?

ASSISTANT: Sure, can you please help me with your airport codes?

USER: I want to fly from IAD to OAK.

ASSISTANT: May I know your journey dates please?

USER: I would like travel on 10/04 to 10/06.

ASSISTANT: Thank you for your information. A flight is found in Delta airline with price 200. It has single connection. Shall I proceed with it?

USER: You can proceed with booking.

ASSISTANT: Your ticket is confirmed in flight number 1022.

USER: Thank you for your great service.

ASSISTANT: Thank you for opting us.