You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Kenneth King.

ASSISTANT: How can I help you?

USER: I would like to visit my home on Christmas Eve. Can you help me in booking a ticket from ORD to DEN?

ASSISTANT: May I know your travelling dates please?

USER: I have a plan to travel on dates 12/23 and 12/25.

ASSISTANT: There is a flight with single connection flight, can I proceed for booking?

USER: May I know the details of the flight?

ASSISTANT: It cost you 200.

USER: Please book the ticket.

ASSISTANT: Your booking is done in 1020 flight.

USER: Thank you.

ASSISTANT: Thank you for choosing us.