You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: Myself Karen Garcia. Due to some urgent business meeting, I am going to cancel my reservation. Can you please help in cancelling the reservation?

ASSISTANT: Sure, please wait for a while.

USER: Ok, I will wait for your response.

ASSISTANT: I have found reservation on your name and cancelled it successfully.

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

ASSISTANT: You are most welcome.