You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I succour you?

USER: I need to cancel my flight ticket to New York, could you mind help me in cancelling?

ASSISTANT: I'm delighted to help you. Do you know the date on which the reservation has been confirmed?

USER: Definitely, I booked it yesterday. It'll be under Carol Harris.

ASSISTANT: Thank you for the information that you have provided. Please wait for a split second to check your reservation status.

USER: Fine, I will wait for your response.

ASSISTANT: Sorry to inform you that there is no reservation found by the name that you have provided.

USER: Alright, may be my brother have cancelled the reservation.

ASSISTANT: I hope so. Is there anything else I can help you with?

USER: That's all for now, I am so thankful for your support.

ASSISTANT: Thank you for connecting with us. Have a nice day and take care.