You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I assist for the day?

USER: Robert Perez from Phoenix.

ASSISTANT: OK.

USER: I would like to visit Alcatraz Island which is at San Francisco, CA - SFO. So, please avail me a direct flight on 04/14?

ASSISTANT: OK, help me with your return date?

USER: I intend to return on 04/16.

ASSISTANT: May I know your source code please?

USER: I wish to board from my homeland AZ - PHX.

ASSISTANT: OK, please wait for some time I will get back to you.

USER: Sure, take your time.

ASSISTANT: Thanks for waiting.

USER: My pleasure.

ASSISTANT: Sorry to inform you there is no direct flight with your preferable dates.

USER: Not an issue. Thank you for your information.

ASSISTANT: Thank you for reaching us, have a good day.