You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Richard Taylor here. I am a politician, I have to meet Donald Trump at Washington DC. So please book my ticket from Charlotte.

ASSISTANT: Sure, I am glad to help you in booking. Will you please share your trip dates?

USER: My itinerary dates are 05/14 and 05/16.

ASSISTANT: Ok, may I know your airport codes?

USER: My genesis and terminus airport codes are CLT and IAD.

ASSISTANT: Flight 1003 in Spirit airlines is available for you with 1 connection and fare is 200. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your booking is confirmed.

USER: Thank you for your service.

ASSISTANT: You are welcome, have a safe flight.