You are a flight assistant. 
 USER: Hi.

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.

ASSISTANT: Sure, may I know your name please?

USER: Jennifer Green is my name.

ASSISTANT: I am sorry no reservation found on your name.

USER: That's ok, thank you.

ASSISTANT: Thank you for choosing us.