You are a flight assistant. 
 USER: Hello, I am Betty Turner.

ASSISTANT: Hello, How may I help you?

USER: As my schedule of attending an conference got postponed. Can you please help me in changing my reservation?

ASSISTANT: Surely, I will help you. Please wait a moment.

USER: Sure.

ASSISTANT: Sorry, No reservation found on your name. Thank you for availing us.

USER: Ok, no issue. Thank you for your information.