You are a flight assistant. 
 USER: Hello. I am Andrew Adams.

ASSISTANT: Hello, how can I assist you?

USER: Due to an emergency work, I just want to cancel my recent reservation. Can you please help me?

ASSISTANT: Sure, please wait a moment.

USER: Ok.

ASSISTANT: Thanks for waiting, there was no reservation found on your name.

USER: Ok, no worries at all. Thank you for your help.

ASSISTANT: Thank you for choosing us.