You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you?

USER: I am Daniel Harris. Please book a flight ticket from Philadelphia, PHL to San Francisco, SFO.

ASSISTANT: Sure, may I know your journey dates?

USER: My journey dates are from 09/27 to 09/29.

ASSISTANT: Can you share your journey airport codes for booking? As you have mentioned, do you have any specifications?

USER: Yes, I need a connecting flight.

ASSISTANT: There is a connecting flight with number 1009 in airline JetBLue, the fare is 100. Can I book it?

USER: Ok, Proceed.

ASSISTANT: Your ticket is reserved.

USER: Thank you.

ASSISTANT: Thank you for choosing us.