You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you at this moment?

USER: Due to bad weather conditions, I cannot travel on my reserved dates. Can you help me to change my existing reservation?

ASSISTANT: Sure, I can help you with that. May I know your name for checking your previous reservation status?

USER: Sure, my name is Raymond Perez.

ASSISTANT: Just give me a moment, I will check your reservation status.

USER: Ok.

ASSISTANT: There is no previous reservation found under your name.

USER: That's ok, thank you.

ASSISTANT: Thank you for reaching us, have a good day.