You are a flight assistant. 
 USER: Hello, I am Helen Gonzalez.

ASSISTANT: Hello, how can I help you?

USER: Can you book me a flight ticket with price under 500?

ASSISTANT: Sure, can you please provide your journey points?

USER: I am heading to CA - SFO from MN - MSP to participate in football match.

ASSISTANT: May I know your journey dates?

USER: Yes, my depart is on 10/15 and return is on 10/17.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need 1 connection.

ASSISTANT: Please wait for a while, I will check and get back to you.

USER: Sure.

ASSISTANT: We found a flight with Frontier airlines, flight number is 1008 with one connection and price is 100. Shall I proceed?

USER: yes please.

ASSISTANT: Ok, your ticket has been booked.

USER: Thanks for your prompt service.

ASSISTANT: Thanks for choosing us.