You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I would like to change my reservation due to heavy rainfall at my destination location, can you please help me out with that?

ASSISTANT: Sure, can you share your name for checking?

USER: Thank you. Myself Frank Hall.

ASSISTANT: Give me a minute.

USER: Sure, take your time.

ASSISTANT: Sorry, there is no reservation found under your name.

USER: That's ok, no problem. Thank you for checking out.

ASSISTANT: Thank you for reaching us.