You are a flight assistant. 
 USER: Hello. I am Elizabeth King.

ASSISTANT: Hello, How exactly I can serve you the best today?

USER: I want to participate in football tournament at San Francisco, SFO. Can you help me in booking a flight ticket with in the price of 500?

ASSISTANT: Sure, I will help you.

USER: Ok.

ASSISTANT: Please share me your trip dates?

USER: My travelling dates are from 04/18 to 04/20.

ASSISTANT: Please mention your origin airport code?

USER: I am boarding at MSP.

ASSISTANT: There is a connecting flight with price of 200 and flight number 1010. Shall I proceed?

USER: Ok, Please proceed.

ASSISTANT: Your booking has been confirmed with Southwest airline.

USER: Thanks for your help.

ASSISTANT: Thanks for your approach.