You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am Ashley Johnson. I need to change my recent existing reservation due to heavy rainfall in our city. Could you please help me?

ASSISTANT: Sure, please wait for a moment I will revert you back with your reservation status.

USER: Ok.

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

USER: No problem, thanks for searching.

ASSISTANT: Welcome.