You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Dennis Jackson.

ASSISTANT: How can I serve you?

USER: I need to reach Los Angeles on Sept 17th to meet my old friend and my return date will be on Sept 19th, can you please help me in booking?

ASSISTANT: Sure, I am ready to help you. May I know your airport codes?

USER: My boarding and landing airport codes are IAH and LAX.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Here, there is a flight with 1 connection in UA airlines and price is 200. Can I poroceed?

USER: That's perfect, you can proceed with the booking.

ASSISTANT: Ok, your ticket is booked with the flight 1020.

USER: Thank you for your help in booking.

ASSISTANT: Thank you for opting us.