You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Please cancel my recent reservation due to some health issues?

ASSISTANT: Can you please let me know your name?

USER: Sure, I am Alexander Lewis.

ASSISTANT: Let me check details with your recent reservation.

USER: Sure.

ASSISTANT: I regret there is no reservation by name Alexander Lewis.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you.