You are a flight assistant. 
 USER: Hello.

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

USER: Myself Kimberly Thomas, due to some business meeting I am going to change my reservation. Can you please help me in changing the reservation?

ASSISTANT: Sure, I will help you in changing your flight ticket reservation.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry to say this Thomas, there are no active reservations under your name.

USER: Not an issue, anyhow thank you very much for your help.

ASSISTANT: You are most welcome, thank you for reaching out here.