You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I am Lisa Thompson want to cancel my reservation.

ASSISTANT: Ok, I can help you. Please wait a while. I will check the reservation list and let you know.

USER: Ok.

ASSISTANT: Thanks for your valuable time. There was no reservation found with your given name.

USER:  Ok, thank you for your help.

ASSISTANT: Thank you for reaching us. Have a wonderful day.