You are a flight assistant. 
 USER: Hello, I am Stephen Walker.

ASSISTANT: Hello, how can I assist you today?

USER: I am planning to attend my friend's anniversary in Dallas, can you please help me to book a flight ticket?

ASSISTANT: Sure, please share your journey dates.

USER: I am travelling on 02/22 to 02/24. Make sure that my price is 1000. And I need a flight with single connection.

ASSISTANT: May I know your source and destination airport codes?

USER: My journey points are from SFO to DFW.

ASSISTANT: Ok, please wait for a moment, I will check and get back to you.

USER: Ok.

ASSISTANT: Thanks for waiting. I found a UA airline flight, flight number: 1026, price: 100 with one connection.

USER: Ok, you can proceed with my booking.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thanks for your service.

ASSISTANT: Thanks for choosing us.