You are a flight assistant. 
 USER: Hello, I am Christopher Campbell.

ASSISTANT: Hello, how can I assist you?

USER: I need to fly Washington for my business meeting, could you please help me in booking from IAH to IAD?

ASSISTANT: Sure, when are you planning to travel?

USER: My journey dates are 05/19 and 05/21.

ASSISTANT: Let me know your specifications?

USER: I need a halt in my journey.

ASSISTANT: Delta airlines with single connection and price is 100 of 1008 flight.

USER: Ok, please proceed.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you.