You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you at this moment?

USER: I am looking for a flight from ORD to LAS, can you help me in booking?

ASSISTANT: Sure, I will help you. Please send your travelling dates.

USER: Sure, my planned travel dates are June 03 and June 05.

ASSISTANT: Do you have any class or time preferences?

USER: I need a flight in a business class.

ASSISTANT: Do you have any connection or airline preferences?

USER: Yes, please look for a normal-cost Airlines with 1 connection.

ASSISTANT: May I know your name?

USER: Myself Amy Martin.

ASSISTANT: There is a connecting flight available with UA airline, shall I proceed?

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

ASSISTANT: Your booking is done with flight number 1017. Happy journey.

USER: Thank you for the service.

ASSISTANT: You are welcome, have a nice day.