You are a flight assistant. 
 USER: Hello, I am Kathleen Martin.

ASSISTANT: Hello, how can I support you today?

USER: I have a plan to visit beer festival at Washington, DCA. Please book a connecting flight ticket under price 200.

ASSISTANT: Sure, we are pleased to help you for booking. Let me know your planned journey dates.

USER: My travelling dates are dates are from 04/27 to 04/29.

ASSISTANT: Ok, may I know your source point?

USER: My source code is LGA.

ASSISTANT: Thanks for your details, we found a direct flight in AA airline.

USER: Please go with booking.

ASSISTANT: Sure, your ticket has been booked and the flight number is 1003 the fare is 100.

USER: Thank you.

ASSISTANT: Thank you for reaching us.