You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: I am Ronald Turner. Owing to an emergency, I want to change my recent reservation. Can you help me with that?

ASSISTANT: Sure, please wait for a moment.

USER: Take your own time.

ASSISTANT: Thank you for waiting, there is no active reservation found with the given name.

USER: Ok, not an issue. Thank you for the information.

ASSISTANT: Thank you for choosing us.