You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Stephen Edwards. I want to book a ticket from Phoenix to attend my cousin's birthday party in San Francisco. Could you make a reservation on connecting limit?

ASSISTANT: Sure, may I know your source and destination codes?

USER: Source code is PHX and destination code is SFO.

ASSISTANT: Could you please provide me your planned travel dates?

USER: I have planned my travelling dates on 06/03 and 06/05.

ASSISTANT: Please wait for a moment. I will check the availability of the flights.

USER: Sure.

ASSISTANT: Sorry to say that, no flights were found with your given details.

USER: Ok, thank you for providing information.

ASSISTANT: Thank you for reaching us.