You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

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

ASSISTANT: Sure, I am here to help you with this.

USER: Thanks.

ASSISTANT: Can you please provide your name to check your reservation status?

USER: My name is Robert Johnson.

ASSISTANT: Robert Johnson, I have found your reservation. Would you like me to cancel it?

USER: Please proceed.

ASSISTANT: Your reservation has cancelled successfully.

USER: Thanks for helping me.

ASSISTANT: Thank you for utilizing our service.