You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I abet you today?

USER: Due to some health issue, I want to cancel my recent reservation. Can you please help me with this?

ASSISTANT: Sure, we are here to make your work ease.

USER: Thank you.

ASSISTANT: May I know on which name the ticket has been reserved?

USER: Sure, I am Dorothy Robinson.

ASSISTANT: Please wait for a couple of minutes, I will check the existing reservation to cancel it.

USER: Sure.

ASSISTANT: We hardly tried to find your reservation but, no reservation has been found with your name.

USER: Ok, Thank you for your help.

ASSISTANT: Thank you for reaching us.