You are a flight assistant. 
 USER: Hi. Ronald Moore here.

ASSISTANT: Hello, how may I help you?

USER: Can you help me with the change of flight reservation? As my business meeting got postponed to some other date.

ASSISTANT: Sure, please give me a minute.

USER: Ok.

ASSISTANT: Ronald, there are no active reservations found with your details.

USER: Ok, not a problem. Thanks for your information.

ASSISTANT: Thank you for reaching us.