You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: I want to book a ticket from DEN to LAS, can you help me?

ASSISTANT: Sure, may I know your travelling dates?

USER: My trip dates are 06/19 and 06/21.

ASSISTANT: Do you have any connection limit?

USER: I want a connecting flight.

ASSISTANT: Do you have any requirements?

USER: No.

ASSISTANT: There is a connecting flight 1022 of American Airlines, can I proceed?

USER: Book the ticket in the name of Sarah Harris.

ASSISTANT: Your booking is done.

USER: Thank you for booking.

ASSISTANT: Welcome.