You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I assist you for today?

USER: I want to cancel my recent reservation, due to postponed of my tournament. Can you help me with it ?

ASSISTANT: Sure, can you please provide your name to check the details of your reservation?

USER: Sure, my name is Kathleen Adams.

ASSISTANT: Sorry Kathleen, in my database I didn't found any reservation regarding your name.

USER: Ok, no issues.

ASSISTANT: Thank you for contacting us, have a good day.

USER: Thank you.