You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Thomas Moore.

ASSISTANT: How may I help you?

USER: I am attending my sister marriage in San Francisco, CA-SFO can u book flight ticket for me?

ASSISTANT: That's great to hear, can you please provide me your source details?

USER: My source code is AZ - PHX.

ASSISTANT: Will you provide me your travelling dates?

USER: My travelling dates 08/04 to 08/06. Make sure that the price limit is 500.

ASSISTANT: Wait a moment.I will check your flight availability.

USER: Ok, sure.

ASSISTANT: Thanks for your waiting.as per your request the flight is available.

USER: Ok, proceed my flight booking.

ASSISTANT: The flight number is 1026 and price limit is 100.

USER: Ok, proceed.

ASSISTANT: May I know your name for booking the ticket?

USER: Thomas Moore.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your service.

ASSISTANT: Thank you.Have a safe journey.

USER: Your welcome.