You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: Can you please cancel my recent reservation which I have done previously with my name Ashley Walker.

ASSISTANT: Sure, please wait a moment.

USER: Sure, get back with the status of my reservation.

ASSISTANT: Sorry Walker, there is no reservation found on your name.

USER: It's ok, thanks for your response.

ASSISTANT: Thank you for approaching us.