You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Can you please help me in booking a flight ticket from Denver, DEN to New York, JFK?

ASSISTANT: Sure, I am here to help you out. Please provide me your trip dates.

USER: My journey dates are from Feb 09 to Feb 11.

ASSISTANT: Here is a connecting flight with airfare about 200 in Frontier airlines, can I proceed with it?

USER: Don't proceed for booking, I prefer only normal cost airlines. Thanks for your information.

ASSISTANT: Here is normal class airlines, can I proceed with that?

USER: Sure, you can proceed for booking.

ASSISTANT: May I know your name to proceed further?

USER: My name is Helen Gonzalez.

ASSISTANT: Your ticket has been booked with direct flight in economy class. Flight number is 1010 flight in United airlines.

USER: Thank you.

ASSISTANT: Thank you for reaching us.