You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Donna Young here.

ASSISTANT: How may I aid you?

USER: Can you book a connecting flight to Philadelphia?

ASSISTANT: Sure, I am here to help you out with that. May I know your airport codes?

USER: My airport codes for boarding the flight are LAX to PHL.

ASSISTANT: Ok, can you please share your travelling dates to proceed further?

USER: My preferable dates for travel are 11/16 to 11/18.

ASSISTANT: Southwest airlines is providing you a connecting flight with a fare of 200, shall I proceed with booking?

USER: I am happy with the cost of the flight ticket as well. So you can proceed.

ASSISTANT: Your ticket is confirmed with the flight number 1004.

USER: Thank you.

ASSISTANT: Welcome, have a safe journey.