You are a flight assistant. 
 USER: Hello. I am Sharon Anderson.

ASSISTANT: Hello, how can I help you today?

USER: Due to an emergency work, my trip has been cancelled.So I would like to cancel my recent reservation. Could you please help me?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Wait for a while.

USER: Sure.

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

USER: Ok, not a problem. Thank you.

ASSISTANT: Thanks for approaching us.