You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I booked a ticket on my brothers name to enjoy his weekend party with his friend's, but suddenly he met with an accident. Can you please cancel the ticket?

ASSISTANT: I will definitely help you with that. Will you provide the name for checking the reservation?

USER: Sure, the name is Rebecca Davis.

ASSISTANT: Please give me a moment.

USER: Ok.

ASSISTANT: Thank you for waiting. Your reservation is successfully cancelled.

USER: Ok, thank you for cancelling the ticket.

ASSISTANT: It's my pleasure.Have a great day.

USER: Thank you.