You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I am Steven King. Actually, I am planning to travel from CA-LAX to AZ-PHX.

ASSISTANT: Ok. That's good.

USER: My preferable dates are 04/28 to 04/30. Can you help me out?

ASSISTANT: Sure, please wait for a while, let me check the availability of flights.

USER: Sure.

ASSISTANT: The airline Delta is available of flight number 1003 is available. Do you have any other specifications?

USER: Yes, my connection should be 1 and price is 5000.

ASSISTANT: Ok. This airline is perfectly matching your requirement. Shall I proceed booking?

USER: Ok, you can proceed.

ASSISTANT: Ok. Your ticket is booked.

USER: Thank you for your help.

ASSISTANT: Thank you.