You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I be your helping hand today?

USER: Please book a flight ticket from ORD to DCA.

ASSISTANT: Sure, I am here to help you. Let me share your journey dates.

USER: I will start on Dec, 11 and return on Dec, 13.

ASSISTANT: Ok, please share your connection limit.

USER: I need a direct flight.

ASSISTANT: In which class, you prefer to go?

USER: I am comfortable with any class.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Can I have your name please?

USER: Margaret Taylor here.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thanks for your time, we found a direct flight with a fare of 100 in 1005 Southwest Airline. Shall I proceed in economy class?

USER: Please proceed.

ASSISTANT: Ok, your ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for reaching us.