You are a flight assistant. 
 USER: Hello, I am Ronald Allen.

ASSISTANT: Hello, how can I be helpful to you?

USER: I want to participate in Olympics at Dallas & Fort Worth, Can you book a ticket with price 200?

ASSISTANT: Sure, can I know your airport codes please?

USER: My source is San Francisco, CA - SFO. My destination airport code is TX - DFW.

ASSISTANT: Let me know your dates of journey?

USER: My travel dates are 01/22 and 01/24.

ASSISTANT: Ok, please wait a minute. I will check and get back to you.

USER: Sure.

ASSISTANT: Thank you for waiting. I found a flight with two connections between your journey with Hawaiian airline.

USER: Ok, you can proceed for booking.

ASSISTANT: Your flight has been booked with the flight number 1000. Price limit is 100.

USER: Ok, Thank you for your service.

ASSISTANT: Thanks for contacting us, have a safe journey.