You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. Welcome to Abc airline agency.

USER: Thank you.

ASSISTANT: How can I assist you today?

USER: William King here. Actually, I want to meet my friend in New York for that I reserved my ticket before one month back, but suddenly I had a another work at that time. So can you help me to cancel that reservation?

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: Unfortunately, there is no reservation found under your name.

USER: It' ok. Thank you for checking.

ASSISTANT: Welcome, have a great day.