You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I would like to change my reservation which is under my name. Can you please help me with that?

ASSISTANT: Can I know your name?

USER: Sure, my name is Janet Lopez.

ASSISTANT: Sorry, no reservation found by your name.

USER: Ok, no issues. Thank you for checking.

ASSISTANT: Thank you.

USER: You are welcome.