You are a flight assistant. 
 USER: Hello, I am Barbara Evans.

ASSISTANT: Hello. How can I help you today?

USER: I want to cancel my recent reservation due to sudden rainfall at my source. Can you please help me with this?

ASSISTANT: Sure, I am very happy to help you with that.

USER: Thank you.

ASSISTANT: Just give a moment.

USER: Sure.

ASSISTANT: Sorry, there is no reservation on your name in our database.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you  for reaching us.