You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Jason Johnson here. I have a business meeting at Denver, could you help me to book a flight ticket from LAX to DEN?

ASSISTANT: Ok, may I know your travelling dates?

USER: My travelling dates are 17 March and 19 March.

ASSISTANT: Do you want any halt in between your journey?

USER: I need a direct flight.

ASSISTANT: Do you have any preference in class limit?

USER: I am flexible with any class.

ASSISTANT: Here is a single connection flight with fare 100 and 1009 as flight number and available seat in Economy class. Shall I proceed with booking?

USER: Please don't proceed with booking.

ASSISTANT: Ok, thank fine thank you for reaching us.

USER: Most welcome.