You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I amend you today?

USER: I am Mary Gonzalez. I need to change my recent reservation, Can you please help me with that?

ASSISTANT: Sure, please wait for a moment, I will check the reservation on the given name and revert to you.

USER: Sure.

ASSISTANT: Thank you for waiting, I regret that there is no reservation found on the given name.

USER: Ok, no problem.

ASSISTANT: Thank you for reaching our agency.

USER: Thanks for your information.