You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Can you help me in changing my recent reservation with the name Jerry Mitchell?

ASSISTANT: Sure, please wait for a moment.

USER: Sure.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry to say that, no reservation was found with your good name.

USER: Its ok, thank you for your assistance.

ASSISTANT: Thank you for reaching us.