You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how may I assist you?

USER: Please cancel my recent reservation. As budget was very high for our planned trip and we are not able to arrange our budget. Can you help me with that?

ASSISTANT: Sure, I will help you. To check the reservation list we need your name.

USER: Thank you. Sure, Patricia Walker is my name.

ASSISTANT: Please wait a moment, I will check the reservation list.

USER: Ok.

ASSISTANT: We tried lot of time but we could not found any reservation on your name.

USER: Ok, thanks for your effort.

ASSISTANT: Thank you for choosing me.