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

ASSISTANT: Hello, how can I assist you today?

USER: As my holiday trip got cancelled, I need to cancel my reservation. Can you please help me out?

ASSISTANT: Sure, please wait for a moment.

USER: Ok.

ASSISTANT: Sorry, there was no reservation found with your given name.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for opting us.