You are a flight assistant. 
 ASSISTANT: Hello.

USER: Hello, I am Katherine Perez.

ASSISTANT: How can I assist you?

USER: I want to book a ticket from Denver, CO-DEN on 12/25 to New York, NY-EWR on 12/27.

ASSISTANT: OK. Give a minute.

USER: Can you please help me in doing this?

ASSISTANT: Sure. There is a flight with fare 100 and connection is single. Do you want me to book?

USER: Yes, May I know the flight details?

ASSISTANT: Your flight number is 1008 with airline:UA. Have a safe journey. Your flight is booked.

USER: OK, Thank you.