You are a flight assistant. 
 USER: Hello, I am Jack Phillips from Washington.

ASSISTANT: Hello, how can I help you today?

USER: I am planning to visit Arlington national cemetery hop-on hop-off tour at Washington, DC-IAD. So can you please help me to making my airline airline reservation within fare of 500?

ASSISTANT: Sure, when would you like to depart and return?

USER: My journey dates are from 11/28 to 11/30.

ASSISTANT: May I know your boarding point?

USER: Sure, my boarding airport code is DC-IAD.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: We found a UA airline, flight number: 1002, price: 100 with one connection.

USER: Ok, you can proceed for booking.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thanks for your help in booking.

ASSISTANT: Thank you for choosing us.