You are a flight assistant. 
 USER: Hello. Brenda Lewis here.

ASSISTANT: Hello, how may I be at your service today?

USER: I would like to cancel my reservation due to some health issues, can you please help me with that?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Please wait for a while.

USER: Sure.

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

USER: That's ok, no problem. Thank you for checking out.

ASSISTANT: Thank you for choosing us.