You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I want to book a ticket from MSP to ORD to attend seminar, can you help me in booking?

ASSISTANT: May I know on what dates would you like to travel?

USER: I am departing on Apr 18 and return on Apr 20.

ASSISTANT: Do you require any stopovers in your journey?

USER: I prefer a connecting flight.

ASSISTANT: Do you have any other requirements?

USER: I do not have any other specifications.

ASSISTANT: May I know your name?

USER: My name is Karen Carter.

ASSISTANT: There is a connected flight in Spirit airlines with the fare 200.

USER: Please proceed for booking.

ASSISTANT: Your booking is done.

USER: Thank you for your help.

ASSISTANT: Thank you.