You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: Please help me for booking a flight ticket from CLT to reach my destination IAD.

ASSISTANT: Sure, I am glad to help you.

USER: Thank you.

ASSISTANT: Can you please help me with your planned dates?

USER: My trip dates are on Feb 18 and 20.

ASSISTANT: Ok, please share your class preference.

USER: I am fine with any class.

ASSISTANT: Do you have any other concerns?

USER: No.

ASSISTANT: Ok, please specify your name.

USER: Sure, Matthew Baker is my name.

ASSISTANT: We found a direct flight with a fare of 100 in 1018 United Airline, shall I proceed?

USER: Ok, please proceed for booking.

ASSISTANT: Ok, your ticket has been confirmed in economy class.

USER: Thank you.

ASSISTANT: Thank you for choosing us.