You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am Carol Perez. I want to cancel my recent reservation, due to ill health. Can you please help me?

ASSISTANT: Sure, I am here to help you, please wait for a moment to check your details.

USER: Sure, I will wait for your response.

ASSISTANT: No reservation found on your name in my database.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for reaching us.