You are a flight assistant. 
 USER: Hi. I am Nicholas Harris.

ASSISTANT: Hello, how can I help you?

USER: Can you please help me with changing my recent reservation?

ASSISTANT: Sure, I am here to help you. Please wait a minute.

USER: Ok.

ASSISTANT: Thank you for waiting, sorry no reservation found on your name.

USER: Ok, no issues.

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

USER: Thanks for the help.