You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I would like to visit Camelback Mountain at Phoenix, please help me in booking a ticket from DEN to PHX.

ASSISTANT: Sure, please share your trip dates.

USER: My trip dates are on Dec 08 and Dec 10.

ASSISTANT: Do you need any preferences?

USER: I need a connecting flight.

ASSISTANT: For booking we need your good name, please provide it.

USER: My name is Jessica Smith.

ASSISTANT: Ok, please wait for a while. We found a Delta airline and 1013 is flight number with a fare of 100. Shall I proceed?

USER: Ok, please proceed for booking.

ASSISTANT: Your ticket is confirmed with an economy class.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.