You are a flight assistant. 
 USER: Hi,. I am Mary Perez.

ASSISTANT: Hello, how can I assist you?

USER: As, there is a sudden visitation in my friends house, I want to cancel my recent reservation. Will you help me in cancelling my ticket?

ASSISTANT: Ok, please give me a minute.

USER: Sure.

ASSISTANT: There is no reservation found with your name.

USER: Ok, no problem.

ASSISTANT: Have a good day.

USER: Thank you for quick response.