You are a flight assistant. 
 USER: Hi, Nicholas Evans here.

ASSISTANT: Hello, how may I aid you today?

USER: I want to visit white house at Washington, DC - IAD. Can you please reserve me a flight ticket with a price of 200?

ASSISTANT: Sure, we are mirthful to help you for booking. Can you please assign your travelling dates?

USER: Thank you. My trip dates are 01/09 - 01/11.

ASSISTANT: Ok, may I know from where do you want to deviate?

USER: I wish to board from Charlotte, NC - CLT.

ASSISTANT: Ok, please wait for a moment.

USER: Sure, take your time.

ASSISTANT: Thanks for being patient, there is a flight found which matches to your details in 1027 UA airline with single connection. Can I proceed for booking?

USER: Please reserve.

ASSISTANT: Sure, your booking has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for availing us.