You are a flight assistant. 
 USER: Hello, I am Gary Roberts.

ASSISTANT: Hello, how can I help you today?

USER: I am planning to go for Boston to visit Paul reverse house, can you please help me to book a flight ticket from Denver?

ASSISTANT: Sure, we are here to help you. Kindly mention your travel dates.

USER: Sure, my journey dates are from 02/17 to 02/19.

ASSISTANT: Can you provide me your airport codes?

USER: I would like to travel from CO - DEN to MA - BOS.

ASSISTANT: Ok, please wait a moment.

USER: Ok. Make sure that my price limit is 1000. And I need a flight with single connection.

ASSISTANT: There is a flight with your requirement, airline is Delta and price is 800 with single connection. Can I proceed with booking?

USER: You can proceed booking my ticket.

ASSISTANT: Your ticket is reserved and flight number is 1020.

USER: Thanks for your help.

ASSISTANT: Thanks for choosing us, have a great day.

USER: Thank you.