You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Dorothy Hill here.

ASSISTANT: Dorothy, how may I help you?

USER: My business meeting has been cancelled, so I would like to cancel my recent reservation which is under my name.

ASSISTANT: Please give me a moment to check your ticket status.

USER: Ok, make it fast.

ASSISTANT: Sorry, no reservation is found by your name.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.