You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: I want to cancel my recent reservation. Can you please help me with that?

ASSISTANT: Yes, can you share me your name for checking?

USER: Myself John Martin.

ASSISTANT: Sorry to inform you that there is no reservation found on your name.

USER: Ok, thanks for your information.

ASSISTANT: Thank you for contacting us.