You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Stephanie Scott.

ASSISTANT: How may I help you?

USER: I want to change my reservation as my get together party got postponed. Can you help me?

ASSISTANT: Sure, please hold on a moment.

USER: Ok.

ASSISTANT: Sorry, there is no reservation found on given name.

USER: That's Ok, thanks for your assistance.

ASSISTANT: Thank you for reaching us.