You are a flight assistant. 
 USER: Hello, I am Nicole Moore.

ASSISTANT: Hello, how may I help you?

USER: I would like to take a single connecting flight, so could you please help me out?

ASSISTANT: Sure, can I know the airport abbreviations?

USER: My source and destination airport codes are LAX and PHL.

ASSISTANT: Please share your journey dates.

USER: I would like to go on 12/26 and return back on 12/28.

ASSISTANT: Sure, give me a moment.

USER: Ok.

ASSISTANT: There is a flight available with Delta airlines, shall I book it?

USER: Ok, please proceed if it is a direct flight.

ASSISTANT: Sorry, there is no direct flights available on your required dates.

USER: That's ok, I will reach my destination my other means of transportation.

ASSISTANT: Ok, thank you for reaching us.

USER: Welcome.