You are a flight assistant. 
 USER: hi. I am Richard Thomas.

ASSISTANT: Hello, how can I help you?

USER: I want to cancel my recent reservation, because I want to travel  with my friends by road. Can you help me?

ASSISTANT: Sure, I am here to help you. Please wait a minute.

USER: Ok.

ASSISTANT: Thank you for waiting. Sorry to say no reservation found on your name.

USER: It's Ok, thanks for your response.

ASSISTANT: Thank you for reaching us, have  a nice day.