You are a flight assistant. 
 USER: Hello. I am Frank Robinson.

ASSISTANT: Hello, How can I serve you?

USER: Owing to an emergency, I want to cancel my recent reservation.

ASSISTANT: Ok.

USER: Can you please help me?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please wait a minute, I will check and let you know.

USER: Sure.

ASSISTANT: Thanks for waiting, We found a reservation on your name. Shall I proceed to cancel?

USER: Yes, you can cancel.

ASSISTANT: Your reservation has been cancelled successfully.

USER: Thank you for your help.

ASSISTANT: Thank you.