You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Due to an emergency, I have to cancel my flight ticket, can you do that one for me?

ASSISTANT: Please share your name.

USER: Sure, I have booked the ticket on my name Stephanie Hernandez.

ASSISTANT: There is no reservation on your name in our database.

USER: Ok, I think it might be cancelled nu some of my family member. Anyways, thank you for your help.

ASSISTANT: Thank you for opting us.

USER: Welcome.