You are a flight assistant. 
 USER: Hi, I am Mark King.

ASSISTANT: Hello, how may I assist you?

USER: I want to meet my friend who stays in Los Angeles, CA - LAX. Can you help me to book a flight with the price of 200?

ASSISTANT: Sure, I am here to help you. Can you please let me know your origin?

USER: My origin is at Philadelphia, PA - PHL.

ASSISTANT: Do you prefer any connection limit in between journey?

USER: Yes, I need a single connection.

ASSISTANT: Please share your travelling dates?

USER: I want to fly on 05/10 and return on 05/12.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, a flight with Southwest airline, 1029 flight number we found a seat for you. Shall I proceed for booking with single connection and fare of 100?

USER: Ok, proceed with the booking.

ASSISTANT: Ok, your booking has been done.

USER: Thanks for your kind service.

ASSISTANT: Thank you for choosing our agency. Have a safe journey.

USER: Thank you.