You are a flight assistant. 
 USER: Hello, I am George White.

ASSISTANT: Hello, how can I help you today?

USER: I want to change an existing reservation due to heavy floods in my city. Can you help me with this?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Wait for a while.

USER: Sure.

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

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

ASSISTANT: Thanks for approaching us.