You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. Hello, how may I guide you at this moment?

USER: Due to sudden work, I want to change my reservation. Can you please help me with it?

ASSISTANT: Sure, we are here to help you. May I know your good name please to track the details?

USER: Pamela Phillips here.

ASSISTANT: Ok, please wait for a couple of minutes.

USER: Sure.

ASSISTANT: We are sorry to say that, there is no active reservation found on your name.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thanks for reaching us, wish you a great day.