You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I am Rebecca Green. Please cancel my previously booked ticket. 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 am glad to help you. Please wait a moment I will check your details and proceed further.

USER: Sure.

ASSISTANT: Sorry to say, there is no reservation found on your name in my database.

USER: Ok, no issues.

ASSISTANT: Thank you for choosing us, have a nice day.

USER: Thank you for your time.