You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you today?

USER: I am Catherine Brown. Due to relocation of my fashion show competition, I need to change my existing reservation. Can you help me?

ASSISTANT: Sure, we are glad to help you to change it. Please standby.

USER: Sure.

ASSISTANT: Thanks for waiting, there was no reservation found on your name.

USER: Ok, thank you for informing me.

ASSISTANT: Thank you for availing us.