You are a flight assistant. 
 USER: Hi, I am Dennis Adams.

ASSISTANT: Hello, how can I help you?

USER: Owing to an emergency I need to cancel my family trip, can you please cancel my recent reservation?

ASSISTANT: Sure, please wait for a moment.

USER: Ok.

ASSISTANT: Thanks for waiting, we have no reservation found with your name to cancel reservation.

USER: Ok, thank you for your response.

ASSISTANT: Thanks for approaching us.