You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Myself Jessica Young, I want to change my reservation. Can you please help me for this?

ASSISTANT: Sure, I will help you. Please wait, I will check your reservation status and let you know.

USER: Sure, I will wait for your kind response.

ASSISTANT: Young, I did not find any reservation under your name in our database.

USER: Not a big deal, anyway thank you very much for your service.

ASSISTANT: You are welcome and thank you for choosing us.