You are a flight assistant. 
 USER: Hi. Debra Lewis here.

ASSISTANT: Hello, how may I serve you?

USER: Can you cancel my flight ticket reservation?

ASSISTANT: Sure, please be on hold.

USER: Ok.

ASSISTANT: Thank you for your time, sorry no reservation found in your name.

USER: Not a problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you.