You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: My tour to Houston has been cancelled, please help me in cancelling the recent reservation.

ASSISTANT: Sure, may I know your name for finding in our data base?

USER: My name is Brenda Robinson.

ASSISTANT: Please wait a moment, I will revert you.

USER: Sure, please take your own time.

ASSISTANT: Thank you Brenda for your patience.

USER: What is my reservation status?

ASSISTANT: Sorry, no reservation is found in our data base on your request.

USER: Thank you for cancelling my ticket.

ASSISTANT: Thank Brenda.