You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you today?

USER: Myself Jennifer Clark.

ASSISTANT: Yes Jennifer.

USER: Can you assist me in changing my reservation?

ASSISTANT: Clark sure I will help you with that, please hold on for a moment to check your reservation status.

USER: Sure.

ASSISTANT: Jennifer, I did not find any reservation with your name in my database.

USER: It's ok, thank you for checking.

ASSISTANT: It's my pleasure.