You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, How can I help you now?

USER: I am Charles Martinez. I would have to cancel my recent reservation, due to typhoons my exam has been cancelled. Can you please help me with that?

ASSISTANT: Ok, please wait for a minute.

USER: Sure.

ASSISTANT: Thank you for waiting. I have checked in reservation list to cancel your ticket, but could not find any reservation with your name.

USER: Ok, no issue. Thanks for your kind service.

ASSISTANT: Thank you for reaching us.