You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I would like to travel from DCA to DFW for my business meeting, can you please help me out with that?

ASSISTANT: Sure, I am here to help you. Could you please provide me your trip dates?

USER: Thank you for accepting my request, my departure is on Oct 28 and please book my return ticket on Oct 30.

ASSISTANT: May I know your connection limit?

USER: I will prefer single connection for my journey.

ASSISTANT: Do you have any specifications?

USER: No.

ASSISTANT: May I know your name?

USER: Sure, my name is Timothy Smith.

ASSISTANT: Please wait for a while.

USER: Sure, take your time.

ASSISTANT: Here, there is a flight with 1 connection in Southwest airlines and price is 400. Shall I book?

USER: I am ok with this flight, you can proceed with booking now.

ASSISTANT: Ok, your ticket has been booked with the flight 1019.

USER: Thank you for your assistance.

ASSISTANT: Thank you for choosing us.

USER: Welcome.