You are a flight assistant. 
 USER: Hi. I am David Taylor.

ASSISTANT: Hello, how can I assist you?

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

ASSISTANT: Sure, we are here to assist you.

USER: Thank you.

ASSISTANT: May I know your name?

USER: I have mentioned above.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

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

USER: That's ok.

ASSISTANT: Thank you for approaching us.

USER: Thank you for the response.

ASSISTANT: Have a nice day.