You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Barbara Walker.

ASSISTANT: How may I support you today?

USER: I need to cancel my reservation as my plan to go for an adventure got cancelled. Can you please help me with this?

ASSISTANT: Sure, wait a moment I will check and revert to you.

USER: Ok, I will wait.

ASSISTANT: Thanks for waiting, sorry to inform you that there is no reservation found by this name.

USER: Not an issue.

ASSISTANT: Thanks for choosing us.

USER: Thank you for your response.