You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Catherine Hernandez.

ASSISTANT: Catherine, how may I aid you today?

USER: I am planning to cancel my recent reservation,due to health issue. Can you please cancel my ticket?

ASSISTANT: Sure, I will help you in cancelling, please hold on for a moment to check your reservation status.

USER: That's fine. Thank you for your help.

ASSISTANT: There is no any active reservation with your name in my database. Thank you for reaching us.

USER: Thank you.