You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I help you?

USER: I need to book a flight ticket from CLT to PHX. Can you help me in my booking?

ASSISTANT: Sure, I will help you. Can you please send me the travelling dates?

USER: I will start my journey on Mar 18th and I will return on Mar 20th.

ASSISTANT: Please send me your name.

USER: Myself Jack Collins.

ASSISTANT: Do you require any class preference to travel?

USER: I am comfortable to travel in business class.

ASSISTANT: Are you willing to travel with a stop over in between your journey?

USER: Yes, I need a stopover in my journey.

ASSISTANT: Ok, we found a Spirit airline, flight number 1005 which matches your request. Shall I proceed to book?

USER: Proceed with my booking.

ASSISTANT: Your reservation is done.

USER: Thank you for your help.

ASSISTANT: Thank you. Have a nice day.