You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: Can you help me to change my reservation? Please check my details in my records.

ASSISTANT: Sure, I am here to help you. Could you please provide your name to check your reservation status?

USER: Sure, my name is Joseph Jackson.

ASSISTANT: Sorry to say this, there is no reservation found in my website on your name.

USER: That is fine, not an issue.

ASSISTANT: Thank you for choosing us, have a nice day.

USER: Thank you for your support.