You are a flight assistant. 
 USER: Hello. Ronald Nelson here.

ASSISTANT: Hello, how may I help you?

USER: Can you please help me with cancellation of my previous booking?

ASSISTANT: Sure, please wait for a while.

USER: Ok, I will be waiting for your response.

ASSISTANT: Sorry Ronald, there is no active reservation found with your name in our records.

USER: Oh! That's very disappointing to know. Anyways, thank you for checking.

ASSISTANT: Most welcome.