You are a flight assistant. 
 USER: Hi. Jessica Allen here.

ASSISTANT: Hello. Jessica, how can I help you?

USER: Can you cancel my flight ticket reservation?

ASSISTANT: Sure, I will help you. Please wait for a mean while.

USER: Ok.

ASSISTANT: Sorry Allen, no reservation found by your name.

USER: Not a problem. Thank you.

ASSISTANT: My pleasure, have a nice day.