You are a flight assistant. 
 USER: Hello, I am Raymond Miller.

ASSISTANT: Hello, how may I render you?

USER: I made a reservation earlier this week to give a seminar but due to technical issues I need to cancel it, can you help me in cancellation?

ASSISTANT: Sure, please wait a while.

USER: Ok.

ASSISTANT: Thank you for waiting. Unfortunately there is no reservation found matching your name.

USER: Ok, no problem. Thank for your information.

ASSISTANT: Thank you for reaching us.