You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: I am Dorothy Adams, I need to cancel my reservation as I am having a sudden work in my office. Can you please help me out?

ASSISTANT: Sure, I will help you with that.

USER: Thank you for responding positively.

ASSISTANT: Please allow me a moment.

USER: Sure, I will wait for your response.

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

USER: It's ok, it might not be done properly at the time of booking. Anyways thank you for the information and checking my existing reservation.

ASSISTANT: Thank you for reaching us.