You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Betty Clark here.

ASSISTANT: How may I help you?

USER: Please cancel my recent reservation, which I have done with my name.

ASSISTANT: Sure, please wait for a moment to check your details. No reservation found on your name. Sorry for inconvenience.

USER: It's ok, thanks for your information.

ASSISTANT: Thank you for reaching us.