You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you today?

USER: My name is Anthony Collins. Due to some technical issue in our office, I want to solve the issue. Regarding that, Can you cancel my booking?

ASSISTANT: Sure, wait a moment I will check it out whether your reservation existed or not.

USER: Ok.

ASSISTANT: Your reservation is successfully cancelled.

USER: Thank you for your help.

ASSISTANT: You are welcome.