You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I render you today?

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 will help you in cancellation. Could you please provide your name to check your previous reservation status?

USER: My name is Larry Williams.

ASSISTANT: Ok, give me a moment.

USER: Ok.

ASSISTANT: Thanks for waiting, sorry to inform you we did not found any reservation by this name.

USER: Ok, no issues.

ASSISTANT: Thanks for reaching us.

USER: Thanks for the help.

ASSISTANT: We're glad to serve you again.