You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

USER: Assist me in cancelling my previous flight reservation. As I modified my journey dates.

ASSISTANT: Sure, I am happy to help you with that.

USER: Thanks for accepting my request.

ASSISTANT: For cancelling your reservation, we need to know your name to check your reservation status. So, please share me your good name.

USER: Patricia Carter here.

ASSISTANT: Sorry to say that, we have not found any active reservation on your name in our database.

USER: Ok, not an issue. Thanks for checking.

ASSISTANT: Thank you for choosing us.