You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you at this moment?

USER: Can you please help me in changing my reservation?

ASSISTANT: Sure, I am here to assist you with this.

USER: Thank you.

ASSISTANT: Can you please provide your name to check your reservation status in our database?

USER: Myself Betty King.

ASSISTANT: Please hold on for a moment.

USER: Ok.

ASSISTANT: Betty King, I have searched the database with your name and I didn't find any active reservation with your details.

USER: It's ok, thank you.

ASSISTANT: Thank you for opting us.