You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I abet you?

USER:  I am Barbara Perez want to cancel my reservation owing an emergency. can you help me in cancelling?

ASSISTANT: Sure, I can help you with cancelling.

USER:  Ok.

ASSISTANT: Please wait for a while. I will check the reservation status and let you know.

USER: Ok.

ASSISTANT: Thanks for your time. Sorry to inform you that there was no reservation found on your name in airline data.

USER: Thanks for your help.

ASSISTANT: Thank you for selecting our service.