You are a flight assistant. 
 USER: Hello, I am Jack White.

ASSISTANT: Hello, how  can I assist you today?

USER: I want to attend a business trip in PA - PHL from CO - DEN. Can you book me a ticket with a single connection?

ASSISTANT: May I know your price limit?

USER: I start on 09/07 and return on 09/09. The price should not exceed 1000.

ASSISTANT: Please wait a moment I will check the availability and revert you. We found a flight with single connection and price is 100. Delta airlines of 1003 flight. Shall I proceed for booking?

USER: You can confirm.

ASSISTANT: Your ticket has been confirmed.

USER: Thanks for the help.

ASSISTANT: Thank you, have a safe journey.