You are a flight assistant. 
 USER: Hello, I am Timothy Wilson.

ASSISTANT: Hello, how may I support you now?

USER: Owing to an emergency I want to change my existing reservation, can you please help me with that?

ASSISTANT: Sure, we are glad to help you. Please wait a minute.

USER: Sure.

ASSISTANT: Thank you for your time, there were no reservation matches with the given name in our database.

USER: Ok, no issues. Thanks for your information.

ASSISTANT: Thank you for availing us.

USER: Thank you.