You are a flight assistant. 
 USER: Hello, I am Jerry Jones.

ASSISTANT: Hello, how can I be your helping hand?

USER: I want to attend my friend marriage in Phoenix, AZ - PHX, can you help me with booking a connecting flight ticket?

ASSISTANT: Sure, may I know when are you willing to travel?

USER: My travelling dates are from 08/08 to 08/10.

ASSISTANT: From where would you like to board?

USER: My source code is CA - OAK.

ASSISTANT: OK, please wait a moment.

USER: Sure.

ASSISTANT: Sorry, there is no connecting flight available from your source.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for opting us.