You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: I am Alexander Green and I want to cancel my reservation as my plan for adventure trip got cancelled. Can you help me with the cancellation?

ASSISTANT: OK, please wait for few minutes, let me check and revert you.

USER: Ok.

ASSISTANT: Thanks for waiting, there is no reservation with your name.

USER: Ok, no issues.

ASSISTANT: Thank you, for reaching us.

USER: Thanks for your response.