You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How can I oblige you today?

USER: Due to sudden change in business meeting, I would like to cancel my ticket. Will you help me in cancellation?

ASSISTANT: Sure, we are here to aid you.

USER: Thank you.

ASSISTANT: Let me know your name to check with the reservation.

USER: I am Richard Jackson.

ASSISTANT: Thanks for waiting. There is no reservation found on your name Richard Jackson.

USER: Ok. Thank you.

ASSISTANT: Thank you for availing us.