You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I help you?

USER: Can you aid me to book my ticket from MSP to DEN?

ASSISTANT: Sure, May I know your travelling dates?

USER: My trip dates are Oct 11 and Oct 13 respectively.

ASSISTANT: Do you have any connection limit?

USER: I prefer for a connecting flight.

ASSISTANT: Any other preferences?

USER: No other preferences.

ASSISTANT: May I know your name?

USER: Charles Roberts here.

ASSISTANT: You have a direct flight in Delta airlines and price 100, Shall I proceed?

USER: Please proceed for booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you for the help.

ASSISTANT: Thank you.