You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I guide you?

USER: I am Jeffrey Hernandez. I want to change my existing reservation, due to heavy rainfall. Can you help me out?

ASSISTANT: Sure.

USER: Ok.

ASSISTANT: I am ravish to help you. Please, wait.

USER: Thank you.

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

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

ASSISTANT: Thank you for reaching us.