You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I need to cancel my recent reservation due to some issues, can you help me in doing that?

ASSISTANT: Sure. Please let me know your name?

USER: Katherine Nelson here.

ASSISTANT: Let me check with your recent reservation details.

USER: Ok, take your time.

ASSISTANT: I regret there is no reservation by name Katherine Nelson.

USER: Ok, no issues. Thank you for checking.

ASSISTANT: Thank you.