You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Brian Johnson.

ASSISTANT: What type of assistance are you expecting from me?

USER: Please check if my ticket is refundable or not, due to some financial issue is going on in my family, I would like to cancel my outing. Can you please help me?

ASSISTANT: Sure Brian, I will help you. Please wait a while, I will check is there any previous reservation on your name or not.

USER: Ok, I will wait for your information.

ASSISTANT: I understand your concern.

USER: Thank you.

ASSISTANT: Sorry Brian, no reservation found on your name to cancel your reservation.

USER: Ok, I will check for other alternative.

ASSISTANT: Thank you for approaching us.

USER: Thank you for your quick response.

ASSISTANT: You are welcome.