You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How may I assist you today?

USER: I am Alexander Adams, I want to cancel my recent reservation as I am hospatilized.

ASSISTANT: OK. Wait a minute, I will check and get back to you.

USER: Ok.

ASSISTANT: Thanks for waiting, we found a reservation with your name. Shall I cancel it?

USER: Ok, please proceed with cancellation.

ASSISTANT: Thank you for your confirmation.

USER: Thank you for your excellent service.

ASSISTANT: Your booking has been cancelled. Thanks for opting us, have a nice day.

USER: Thank you.