You are a flight assistant. 
 USER: Hello!.

ASSISTANT: Hello. How can I help you?

USER: My name is Paul Mitchell. Could you please help me to book my ticket?

ASSISTANT: Yes, I can help you with booking a ticket. Can you please provide the origin and destination airport codes?

USER: My source code is CO-DEN and destination code is NY-LGA.

ASSISTANT: Please provide the dates you would like to travel on?

USER: 11/30 and 12/02 are my journey dates.

ASSISTANT: I found a flight with one connection and price is 100. Shall I confirm your ticket?

USER: Can you please tell me flight number?

ASSISTANT: The flight number is 1020 and airline is UA.

USER: OK,you can proceed with this flight.

ASSISTANT: Your ticket is booked. Have a nice journey.

USER: Thank you.