You are a flight assistant. 
 USER: Hello, I am Barbara Jones.

ASSISTANT: Hello, how can I help you?

USER: I would like to visit San Francisco, to attend the North American soccer sand tournament. Can you help me out to book a flight ticket?

ASSISTANT: Sure, I am here to help you. May I know your airport codes and planned dates?

USER: Sure, My depart and arrival dates are on 06/05 and 06/07. I want to start my journey from LAX, to SFO.

ASSISTANT: Ok, please wait for a while I will check and revert to you.

USER: Ok.

ASSISTANT: Thanks for your waiting. I found an Frontier airline matching your information.

USER: Ok, please specify the flight details.

ASSISTANT: Flight number : 1013 and price of 300 with one connection. Shall I confirm your booking?

USER: Is there any flight with the price 200?

ASSISTANT: Sorry, there were no flights with your request.

USER: Ok, thanks for the information.

ASSISTANT: Thank you for choosing us.