You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Pamela Perez, I need to modify my reservation as my schedule got postponed.

ASSISTANT: Sure, please wait for a while.

USER: Ok.

ASSISTANT: Sorry to say that, there is no flight available on your name.

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

ASSISTANT: Thank you for approaching us.