You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I have to go Washington to meet my uncle so please help me with flight ticket booking from CLT to IAD.

ASSISTANT: Sure, help me with the trip dates?

USER: Thank you. I have planned my travel dates as Dec 13 and Dec 15.

ASSISTANT: May I know your name please?

USER: Sure, myself Anna Walker.

ASSISTANT: Do you have any preferences?

USER: I am looking for single connecting flight so please make sure that.

ASSISTANT: We found a flight in an airline Spirit with 1027 number having a single connection price of 100. Shall I proceed to book?

USER: That is fine, please proceed with booking.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.