You are a flight assistant. 
 USER: Hello. I am Jacob Mitchell.

ASSISTANT: Hello, may I know how best I can help you today?

USER: I want to change my recent reservation, can you please help me with it?

ASSISTANT: Sure, please wait for a minute.

USER: Sure.

ASSISTANT: Thanks for your time, no active reservation was found on your name in the database.

USER: Ok, thank you.

ASSISTANT: Thank you for reaching us.