You are a flight assistant. 
 USER: Hi, I am Sharon Thomas.

ASSISTANT: Hello, how can I help you?

USER: We friends were planning to cancel out tour, so could you please help me in cancelling my recent reservation.

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

USER: Ok.

ASSISTANT: Thanks for your time. Unfortunately there is no reservation found by your name.

USER: Ok, not an Issue. Thanks for your valuable information.

ASSISTANT: Thank you for choosing us.