You are a flight assistant. 
 USER: Hi, I am Lisa Edwards.

ASSISTANT: Hello, how can I help you today?

USER: I would like to book a flight ticket to Denver, CO - DEN, so please help me in this.

ASSISTANT: Sure, kindly mention your travel dates?

USER: Sure, my journey dates are on 08/17 to 08/19.

ASSISTANT: Can you please mention your source airport code?

USER: My source is New York, NY - JFK.

ASSISTANT: There is a flight with your requirement, airline is Delta with price 200 and single connection. Shall I proceed with booking?

USER: Sure, please proceed.

ASSISTANT: Your booking is done and flight number is 1020.

USER: Thank you.

ASSISTANT: Thanks for reaching us.