You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: I am Shirley Jones, can you please help me in changing my reservation as I am not able to make a trip?

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Sorry, no reservation found on your name to change.

USER: Not a problem, anyways thank you for the information.

ASSISTANT: Thank you for reaching us.