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

ASSISTANT: Hello, how can I serve you?

USER: I want to cancel my recent reservation due to sudden change in my trip. Can you help out?

ASSISTANT: Sure, give me a minute.

USER: Ok.

ASSISTANT: Thank you for waiting. Unfortunately there is no reservation found matching your name.

USER: No issue. Thank you.

ASSISTANT: Thank you for picking us.