You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you for the day?

USER: Can you help me to change the reservation which I had done recently?

ASSISTANT: Sure, I am here to help you. May, I know your good name?

USER: Ok, please check for the reservation which I had done on the name Patrick Wilson.

ASSISTANT: Please wait for a moment.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry, we found no reservation on your given name.

USER: That is ok, thank you for let know the reservation status.

ASSISTANT: Thank you for reaching us.