You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you today?

USER: I would like you to cancel my flight reservation due to an emergency, can you please help me?

ASSISTANT: Sure, I will help you with that.

USER: Thank you. I am Daniel Harris.

ASSISTANT: Please wait for a moment, while I check for the reservation.

USER: Sure.

ASSISTANT: Thank you for waiting, I have found your reservation in our system database. Shall I cancel your reservation?

USER: Yes.

ASSISTANT: Your reservation has been cancelled.

USER: Thank you so much.

ASSISTANT: Thank you for visiting us, we hope see you again.