You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Joshua Wright, I am planning to visit San Francisco for short vacation. Can you book a connecting flight ticket for me?

ASSISTANT: Sure. May I know your airport codes?

USER: My source point is PA-PHL and destination is CA-SFO.

ASSISTANT: When your willing to travel?

USER: I will fly form 10/15 and return on 10/17.

ASSISTANT: There is a Delta airline 1002 flight with single connection.

USER: Please proceed with booking.

ASSISTANT: Your booking is done.

USER: Thank you for helping me with booking.

ASSISTANT: Thank you for reaching us.