You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Can you please assist me with cancelling my previous booking now?

ASSISTANT: How may I assist you today?

USER: Please help me with cancelling my ticket due to health issues.

ASSISTANT: I will check with that. Please tell me your name?

USER: My name is Debra Hill.

ASSISTANT: Sorry, no reservation found on your name to cancel.

USER: Oh! That's sad to know. Thank you for checking.

ASSISTANT: Thank you for reaching us.

USER: You are welcome.