You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: Jack Taylor here, I want to cancel my recent reservation as my plan to go for hummer ride got cancelled. Can you help me?

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Sorry, no reservation found on your name to cancel.

USER: Ok fine, thanks for your response.

ASSISTANT: Thank you for reaching us.