You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: Dorothy Taylor here. Due to inconvenience of my work, I want to cancel my reservation. Can you please help me for that?

ASSISTANT: Sure, give me a minute.

USER: Ok, I will wait.

ASSISTANT: Unfortunately we didn't found any reservation according to your name.

USER: Anyway, thanks for the information.

ASSISTANT: Thank you for being with us.