You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you today?

USER: Kathleen Clark is my name. As my visa has been cancelled due to some technical issues, I want to cancel my reservation.

ASSISTANT: Ok.

USER: Please help me in this.

ASSISTANT: Sure, please wait for a moment.

USER: Ok.

ASSISTANT: Thanks for waiting, no reservation found with your name to cancel.

USER: No problem. Thank you for your response.

ASSISTANT: Thanks for choosing us, have a nice day.