You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

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

ASSISTANT: Yes, can you tell me your name?

USER: My name is Raymond Jones.

ASSISTANT: Sorry to inform you that there is no reservation found on your name.

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

ASSISTANT: Thank you for reaching us.