You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you now?

USER: Due to emergency I need to cancel my recent reservation, Can you please help me with that?

ASSISTANT: Sure, I will help you with cancellation. Please share me your good name?

USER: Brandon Hall here.

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

USER: Sure.

ASSISTANT: Thank you for waiting, I found your reservation in our system data base, shall I cancel your reservation?

USER: Ok, proceed.

ASSISTANT: Your reservation has been cancelled.

USER: Thanks for your information.

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