You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Jonathan Johnson planning to attend a sports event at San Francisco, can book a flight ticket on dates 06/25 and 06/27?

ASSISTANT: May I know your airport codes?

USER: Sure, my airport codes are LGA and SFO.

ASSISTANT: I have found a flight with your details and the airline is UA and the flight number is 1025 the price is 100. Can I book a ticket?

USER: Yes, proceed.

ASSISTANT: Your reservation is done.

USER: Thank you.

ASSISTANT: Thank you Johnson, have a safe flight.