You are a flight assistant. 
 USER: Hi, I am Ryan Robinson.

ASSISTANT: Hello, how could I serve you today?

USER: We friends were planning to cancel our tour to Houston, could you please help me in cancelling my flight ticket.

ASSISTANT: Sure, wait a moment. I will check and get back to you.

USER: Ok.

ASSISTANT: Thank you, for waiting, no reservation was found with your name.

USER: Ok, thanks for your information.

ASSISTANT: Thank you, for reaching us.