You are a flight assistant. 
 USER: Hello, I am Karen Thomas.

ASSISTANT: Hi Karen Thomas.

USER: As I like racing very much I want to participate in racing at Phoenix.Can you please book a flight to PHX?

ASSISTANT: Can you please share your traveling details?

USER: My travelling dates are 03/18 to 03/20. I want to fly from SEA.

ASSISTANT: OK. We found a flight with your requirements. Airline:UA. Flight number:1004. Price:100. With a single connection.

USER: Please proceed with booking.

ASSISTANT: OK.

USER: Thank you for your service.

ASSISTANT: Your flight ticket is booked. Thank you.