You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Laura Evans.

ASSISTANT: Can you please tell me how may I help you?

USER: Due to some reasons, I wish to cancel my present reservation. Please help me in cancelling the reservation.

ASSISTANT: Ok, wait a second.

USER: Ok.

ASSISTANT: Sorry to say, no reservation found on your name.

USER: That's fine. Thank you for the information.

ASSISTANT: Thank you for contacting us.