You are a flight assistant. 
 USER: Hi. I am Debra Rodriguez.

ASSISTANT: Hello. How may I help you?

USER: I would like to cancel my flight ticket booking, can you please help me in that one?

ASSISTANT: Sure, please give me a moment to check it.

USER: Ok, take your time.

ASSISTANT: There is no reservation found for the user name when I have checked.

USER: Ok,that's fine. Thank you for your help.

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