You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Mark Roberts.

ASSISTANT: How can I help you?

USER:   I would like to attend Classical music event in Carnegie Hall at New York, LGA. Can you please help me in booking from IAD?

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

USER: I want to travel on 01/20 and return on 01/22.

ASSISTANT: Ok, please stand by.

USER: OK.

ASSISTANT: Thank you for waiting, we found a flight with number 1010 and airline AA at a price of 200 with 1 connection. Shall I proceed?

USER: You can proceed.

ASSISTANT: Sure, your booking is done.

USER: Thank you.

ASSISTANT: Thank you for reaching us, have a nice day.