You are a flight assistant. 
 USER: Hello, I am Sharon Green.

ASSISTANT: Hello, how may I assist you now?

USER: I want to start from Denver to attend my family meeting, can you help me to book a flight ticket with single connection?

ASSISTANT: Sure, could you please ensure your preferred dates of travel?

USER: I will start on 10/09 and my return date will be on 10/11.

ASSISTANT: May I know your price limit?

USER: I need the flight ticket within the fare limit 5000.

ASSISTANT: Could I have your take off airport code?

USER: My boarding and landing points are from Denver, CO-DEN and Phoenix, AZ-PHX.

ASSISTANT: Ok, please wait for a minute.

USER: Sure.

ASSISTANT: Thank you for waiting, we found a flight in Delta airline of flight number 1004 matches given criteria. Shall I proceed?

USER: Yes, please proceed with the booking.

ASSISTANT: Your booking has been processed.

USER: Thank you for your help in booking.

ASSISTANT: Thank you for opting us.