You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you at this moment?

USER: I need to change my recent reservation, can you please help me?

ASSISTANT: Sure, may I know your good name?

USER: Myself Jessica Harris.

ASSISTANT: Ok, please wait for a minute.

USER: Sure, I will be waiting.

ASSISTANT: Thanks for waiting, there is no active reservation found on your name in the database.

USER: That's ok, thank you for the information.

ASSISTANT: Thank you for reaching us.