You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today from my end?

USER: I am Dennis Gonzalez. Could you please help me in flight ticket booking process from CLT to DEN?

ASSISTANT: Sure, I am here to help you out. Please provide me your trip dates.

USER: Thank you for your resposne, i want to departure on Sept 0.

ASSISTANT: Do you have any requirement?

USER: Sorry, I want to departure on Sept 03 and confirm my return ticket also on Sept 05.

ASSISTANT: Here is a flight with 1 stop and price is AA airlines, can I proceed with it?

USER: I want a direct flight, can please check with this?

ASSISTANT: Sorry Dennis Gonzalez, there is no flight in your route.

USER: Oh! It's ok no problem. Thank you for your information.

ASSISTANT: Thank you for reaching us.