You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am Ruth White. Can you help me to cancel my reservation?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Ok, please wait a minute.

USER: Ok.

ASSISTANT: Sorry to tell you, there is no reservation found with your name to cancel. Thank you for reaching us.