You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you today?

USER: I want to cancel my recent reservation, can you help me in this?

ASSISTANT: Sure, I'll help you in cancellation.

USER: Thank you.

ASSISTANT: Please let me know your name to check the reservation status.

USER: Sure, Catherine Phillips is my name.

ASSISTANT: We did not found any reservation by this name.

USER: Ok, not a problem. Leave it.

ASSISTANT: Thank you for opting us.

USER: Thanks for your response.