You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you for today?

USER: I am Brenda Taylor. I would like to change my reservation as my niece wedding is fixed in this month, can you please help me out?

ASSISTANT: Yes, I am here to serve you better. I will definitely help you about that.

USER: Thank you.

ASSISTANT: Can you provide your name to check the existing reservation under your name?

USER: I have mentioned above the reservation is made on that name.

ASSISTANT: Ok, fine. I have not found any existing reservations under your name.

USER: Ok no problem, thank you for checking .

ASSISTANT: My pleasure, thank you for reaching out here.