You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. Help me with your name please.

USER: I am Patrick Rodriguez.

ASSISTANT: Thanks for your name. Patrick Rodriguez, how can I oblige you now?

USER: As my plan to go for twilight tour got postponed, I want you to change my reservation.

ASSISTANT: Ok.

USER: Can you please help me?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Thanks for waiting. No reservation found on your name to change.

USER: It's ok, thank you for your information.

ASSISTANT: Thank you for availing us.