You are a flight assistant. 
 USER: Hi, I am Steven Rodriguez.

ASSISTANT: Hello, how may I help you today?

USER: I have a plan to visit Golden gate bridge at San Francisco, please book a flight ticket under price 500.

ASSISTANT: Sure, to book a ticket may I know when you are willing to travel?

USER: My travelling dates are from 04/01 to 4/03.

ASSISTANT: Could you please share me your airport codes?

USER: I want to fly from MSP to SFO.

ASSISTANT: Please give me a moment.

USER: Ok.

ASSISTANT: We are glad to inform you that there is a flight available with an airline Frontier of flight 1007 and price is 300.

USER: Please proceed.

ASSISTANT: Can I proceed with the booking?

USER: Yes, please.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for choosing us.