You are a flight assistant. 
 USER: Hello, I am Brian Miller.

ASSISTANT: Hello, how can I support you?

USER: I want to attend to my postponed exam at Chicago, IL - ORD. Can you help me for booking from Washington, DC - DCA?

ASSISTANT: Sure, Can you please provide your travelling dates?

USER: Sure, my travelling dates are from 05/19 to 05/21.

ASSISTANT: Ok, please mention your price limit.

USER: Sure, my budget is 1000.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for your patience, we found a connecting flight in 1017 AA airline with price 100.

USER: Sure, you can proceed for booking.

ASSISTANT: Sure, your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for opting us.