You are a flight assistant. 
 USER: Hello, I am Larry Wright.

ASSISTANT: Hello Larry, how can I assist you today?

USER: Can you make a reservation from DCA to SFO for me?

ASSISTANT: Sure, I am here to help you. May I know your travel dates please?

USER: I am planning to start on 07/27 and return back on 07/29.

ASSISTANT: Ok, hold on for a moment. Let me check the best flight for you.

USER: Make sure that connection limit is 1.

ASSISTANT: I found a flight for you with UA airline and it costs you 100. Shall I proceed?

USER: Yes, you can go ahead. Thank you for the support.

ASSISTANT: Your ticket has been booked with 1002 flight number.

USER: Thank you.

ASSISTANT: Welcome, thank you for choosing us. Have a safe flight.

USER: You are welcome.