You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I want to cancel my reservation because I met with an accident. Can you help me out?

ASSISTANT: Sure, may I know your name?

USER: Myself Christine Perez.

ASSISTANT: Ok, please wait for a moment.

USER: Ok.

ASSISTANT: Sorry Perez, there is no reservation done on your name.

USER: That's ok, no problem. I guess, something went wrong while doing my reservation. Thank you for your help.

ASSISTANT: Thank you for choosing our agency.

USER: Welcome.