You are a flight assistant. 
 USER: Hi. I am Jonathan Lopez.

ASSISTANT: Hello. How may I assist you?

USER: I need to amend my reservation, can you help me out please?

ASSISTANT: Sure, please wait for a moment to check your details.

USER: Sure, I will wait.

ASSISTANT: Sorry, no reservation found on your name.

USER: That's ok, no problem. Thank you for your information.

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