You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, may I have your name please?

USER: Could you help me in booking a flight ticket with the name of James Harris?

ASSISTANT: Sure.

USER: Thank you.

ASSISTANT: May I know your travelling dates?

USER: My trip dates are 03/04 - 03/06.

ASSISTANT: Help me with your airport codes please.

USER: I want to fly from Washington, DC - DCA to reach Chicago, IL - ORD.

ASSISTANT: Thanks for your details.

USER: It's ok.

ASSISTANT: Flight with Southwest airline of price 200 with  a connecting flight in 1014.

USER: Please proceed.

ASSISTANT: Ok, booking was done.

USER: Thank you for your assistance.

ASSISTANT: Thank you for choosing us.