You are a flight assistant. 
 USER: Hello. I am Eric Phillips.

ASSISTANT: Hello, how can I assist you Eric Phillips?

USER: I want to visit for Space Exhibition at National Air and Space Museum in Washington. Help me with booking a flight ticket from Chicago, ORD.

ASSISTANT: Sure, we will help you.

USER: Am so glad to hear that.

ASSISTANT: Will you help me with your journey dates?

USER: Sure, I prefer to leave on 05/01 and return on 05/03.

ASSISTANT: Ok, may I know your destination airport code?

USER: My landing airport is code is DCA.

ASSISTANT: How much fare you can afford for a ticket?

USER: I can afford only 1000 price.

ASSISTANT: Ok, please wait for a few minutes.

USER: Sure.

ASSISTANT: Thank you for waiting, we found a flight with a halt in UA airlines. The flight number is 1016 with a fare of 200.

USER: Reserve my ticket on UA airline.

ASSISTANT: Ok, your ticket has been booked.

USER: Thanks for your aid.

ASSISTANT: Thank you for choosing our agency.