You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I  help you today?

USER: I need to change my reservation as my plan to go for an historical tour got postponed. Can you please, check if my reservation is active or not? If it is active, please change it.

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: May I know your name?

USER: My name is Raymond Turner.

ASSISTANT: Please wait for a while.

USER: Ok, sure.

ASSISTANT: Thanks for being patient, there is no active reservation found on your name.

USER: Ok, not a big problem. Anyways, thank you.

ASSISTANT: Thank you for availing us.