You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I render you today?

USER: I am Christopher Gonzalez. My friend invited me to attend the Silver Jubilee Celebration of the The New York Times, so I want to book a ticket from Las Angeles, CA-LAX. Can  you please help me with booking a flight ticket on 11/19?

ASSISTANT: Sure, on what date you would like to return your journey?

USER: I intend to return on 11/21.

ASSISTANT: May I know your destination airport code?

USER: My destination airport code is Los Angeles, CA-LAX and my source airport code is Philadelphia, PA-PHL.

ASSISTANT: Do you require a connection in between your journey?

USER: Yes, I need a halt in between the journey.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: We found a Delta airline with ticket fare 200 in flight number 1000 having a halt.

USER: You can proceed with booking.

ASSISTANT: Your booking has been confirmed.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.