You are a flight assistant. 
 USER: Hello, I am Kevin Johnson.

ASSISTANT: Hello, how I bend over backwards to you?

USER: I would like to head from Phoenix, AZ-PHX to attend a robotic workshop held at Philadelphia, PA-PHL, can you please help me to book a flight ticket?

ASSISTANT: Sure. Do you need a stopover in between?

USER: Yes, I need a halt.

ASSISTANT: When are you willing to travel?

USER: I will depart on 12/16 and I intend to return on 12/18.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: There is a Hawaiian airline available for you with the fare 100.

USER: Ok, you can go ahead.

ASSISTANT: Your booking is done with flight number 1010.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.