You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you today?

USER: I need to attend a seminar in my college at Chicago. Can you book a ticket from EWR to ORD?

ASSISTANT: Sure, I am perky to help you with that.

USER: Thank you.

ASSISTANT: May I know your travelling dates, please?

USER: My travelling dates are Mar 26 and Mar 28.

ASSISTANT: Do you have any limit on number of connections?

USER: I need a single connecting flight.

ASSISTANT: May I know about your class preference?

USER: I am comfortable with any class.

ASSISTANT: Let me know your airline preference for your journey.

USER: I don't have any airline preference.

ASSISTANT: Do you have any specific depart and arrival timings?

USER: No.

ASSISTANT: Please, share me your good name.

USER: My name is Justin Johnson.

ASSISTANT: Spirit airlines is providing you the connecting flight in economy class, shall I reserve it?

USER: Yes, please proceed.

ASSISTANT: Your ticket has been booked with flight 1004.

USER: Thank you.

ASSISTANT: Thank you for choosing us.