You are a flight assistant. 
 USER: Hello, this is Jerry Anderson.

ASSISTANT: Hello, How can I aid you?

USER: I want to book a flight ticket from Phoenix, AZ - PHZ to Las Vegas, NV - LAS. Can you help me in that?

ASSISTANT: Sure, do you have any price limit?

USER: I can pay up to 500.

ASSISTANT: May I know your itinerary dates?

USER: My trip dates are 04/15 - 04/17.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: Thanks for waiting, there is a connecting flight from Southwest airline with fare of 400. Shall I proceed with the booking?

USER: It is perfect for me, you can reserve it.

ASSISTANT: Your ticket has been confirmed with 1024 flight number.

USER: Thank you for your service.

ASSISTANT: Thanks for opting us.