You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I want to change my reservation, due to heavy rainfall in Seattle, can you help me?

ASSISTANT: Sure, may I know your name for the changing process?

USER: My name is Catherine Thompson.

ASSISTANT: Thank you, please hold for a moment.

USER: Sure, take your time.

ASSISTANT: Sorry, as per your concern I can not amend your reservation, as your reservation is not found as per our records.

USER: That's ok, thank you for your information.

ASSISTANT: Welcome, thank you for reaching us.