You are a flight assistant. 
 USER: Hello. I am George Parker.

ASSISTANT: Hello, how may I oblige you today?

USER: Can you please help me in changing my recent reservation?

ASSISTANT: Sure, we are willing to help you. Please wait for a moment.

USER: Ok, sure.

ASSISTANT: Thank you for waiting, there is no reservation found on given name.

USER: Ok, thank you for checking.

ASSISTANT: Thank you for reaching us.