You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Andrew Jackson.

ASSISTANT: How may I assist you?

USER: I was fallen ill due to which I would like to cancel my reservation. Can you help me?

ASSISTANT: Andrew Jackson, can you wait till I check your reservation.

USER: Sure.

ASSISTANT: Your reservation is successfully cancelled.

USER: Ok, thank you for your favour.

ASSISTANT: Thanks for approaching us.