You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you for the day?

USER: Due to some entrepreneurship meeting, I am going to change my existing reservation. Can you please help me in changing the reservation?

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

USER: Thank you.

ASSISTANT: Can you please provide the name on which you have done the reservation previously?

USER: I am Brenda Adams.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: Brenda Adams, there is no active reservation found under your name in our database.

USER: Ok, no problem. Thanks for the information.

ASSISTANT: Thank you for opting us.