You are a flight assistant. 
 USER: Hi. I am Ruth Gonzalez.

ASSISTANT: Hello, how may I serve you at this moment?

USER: My business meeting go postponed, can you please help me in changing the reservation?

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

USER: Ok.

ASSISTANT: Sorry, there is no reservation existing on your name.

USER: Ok, no problem. Thank you.

ASSISTANT: You are welcome, thank you for reaching us.