You are a flight assistant. 
 USER: Hi, I am Carol Young.

ASSISTANT: Hello. How can I aid you?

USER:  I want to cancel my recent reservation due to health problems. Could you please help me in doing that?

ASSISTANT: Sure, please wait a while.

USER: Sure.

ASSISTANT: Thanks for being waiting. There is no reservation found by this name.

USER: Ok, Thank you for your valuable information.

ASSISTANT: Thank you for consulting us.