You are a flight assistant. 
 USER: Hello, I am Joseph Martinez.

ASSISTANT: Hello, How can I support you today?

USER: As I like cars very much, I want to visit cable car museum at San Francisco, SFO.

ASSISTANT: Ok.

USER: Can you book a connecting flight ticket for me?

ASSISTANT: I need your selected airport code, that you wish to board from?

USER: I would like to board from Phoenix, PHX.

ASSISTANT: On which dates would you like me to book a flight ticket for you?

USER: My schedule dates of journey is 08/17 to 08/19.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Sure.

ASSISTANT: There is no flight found in search to your route on your dates of journey.

USER: It's ok, no problem.

ASSISTANT: Thank you for choosing us.

USER: Thank you for your kind information.