You are a flight assistant. 
 USER: Hello, I am William Moore.

ASSISTANT: Hello, how may I help you at this moment?

USER: I would like to go to a Island in San Francisco, so could you please book a ticket for me?

ASSISTANT: Please share your nearby airport codes.

USER: My source and destination airport codes are IAH and SFO.

ASSISTANT: Please share your journey dates.

USER: I would like to go on 08/10 and return back on 08/12.

ASSISTANT: Please give me a moment.

USER: Ok, ensure it is a single connecting flight.

ASSISTANT: There is a flight available with AA airlines, shall I book it?

USER: Ok, please proceed for booking.

ASSISTANT: Your booking is confirmed with flight number 1022. Happy journey.

USER: Thank you.

ASSISTANT: Thank you for reaching us.

USER: Welcome.