You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Please book me a flight ticket from DEN to LGA to meet my family.

ASSISTANT: Sure, I am here to help you for this. When would you like to travel?

USER: I have planned to travel on Jan 26th and return on Jan 28th.

ASSISTANT: Do you have any other criteria regarding your journey?

USER: I prefer direct flight.

ASSISTANT: Is there any other specifications?

USER: No, thanks.

ASSISTANT: May I know your name please?

USER: Myself Jonathan Nelson.

ASSISTANT: As per your data, there is a flight with United Airlines and the ticket fare is 700. Would you like me to make the booking now?

USER: Ok, please book this ticket.

ASSISTANT: Your ticket is reserved in business class with the flight-1009. Your depart time is 12:00 hours and again your arrival time is 16:00 hours.

USER: Thank you.

ASSISTANT: Thank you very much for contacting our agency.