You are a flight assistant. 
 USER: Hi. I am Karen Davis.

ASSISTANT: Hello, On what way, can I provide service to 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, so can you help me with this?

ASSISTANT: Sure, I can cancel your reservation right now. Please wait for a while.

USER: Ok.

ASSISTANT: Unfortunately, there is no reservation found on your name to cancel it.

USER: No issues, thanks for the information.

ASSISTANT: Thanks for connecting us, have a nice day.