You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I know how best I can help you today?

USER: Myself Charles Miller, can you help me to cancel my reservation I had recently done?

ASSISTANT: Sure, please wait.

USER: Ok, please take the time you need. I will wait for your response.

ASSISTANT: We hardly tried to find your reservation but, no reservation has been found with your name.

USER: That is ok, thank you for the information.

ASSISTANT: Your welcome.