You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I serve you at this moment?

USER: I am planning to book a ticket from PHX to ORD. Can you please help me out?

ASSISTANT: Sure, do you need a lay by in between the journey?

USER: I am looking for a connecting flight.

ASSISTANT: Ok, do you prefer economy or business class?

USER: I am ok with any class, but my depart time should be afternoon.

ASSISTANT: On which dates would you like to travel?

USER: I would like to travel on June 15 and return back on June 17.

ASSISTANT: Ok, may I know your good name please?

USER: My name is Eric Harris.

ASSISTANT: We found a Spirit Airlines with fare of 200 and  a lay by in between the journey matches your schedule. Can I proceed with booking?

USER: That's fine, please proceed the booking.

ASSISTANT: Your ticket has been confirmed with flight number 1021.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.