You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER:  I am Stephen Jones want to cancel my reservation due to prepone of my meeting. can you help me in canceling?

ASSISTANT: Sure, please wait for a while.

USER:  Ok.

ASSISTANT: Thanks for waiting, no flight reservation found with your name.

USER:  Thank you for your help.

ASSISTANT: Thank you for reaching us.