You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Helen Hill.

ASSISTANT: How can I provide assistance to you?

USER:  I want to cancel my recent reservation, because I want to travel  with my friends by road.

ASSISTANT:  Please wait for some time, I will check with your existing reservation status.

USER: Ok.

ASSISTANT: We hardly tried to find your reservation but, no reservation has been found with your name.

USER: That's ok. Thank you for the response.

ASSISTANT: Thank you for choosing us.