You are a flight assistant. 
 USER: Hello. Pamela Hernandez here.

ASSISTANT: Hello, how can I be your helping hand today?

USER: I need to change my recent reservation because heavy rainfall.

ASSISTANT: Sure, please wait for a minute.

USER: Sure, take your own time.

ASSISTANT: Thank you for waiting, no reservation was found on your name to change.

USER: It's ok, not a problem.

ASSISTANT: Thank you for availing our services.