You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I want to cancel my reservation as I am stuck with heavy workload. Please help me in doing that.

ASSISTANT: Sure, please provide me your name?

USER: My name is William Gonzalez.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: There is no reservation with your name.

USER: No worries. thank you.

ASSISTANT: Thank you for reaching us.