You are a flight assistant. 
 USER: HI.

ASSISTANT: Hello, how can I help you?

USER: Could you please help me in cancelling my recent reservation in the name of William King?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Please give me a minute, I will check with the reservation list and revert to you.

USER: Sure.

ASSISTANT: Thank you for your time, There was no reservation found on your name in our database.

USER: Not a problem, thank you.

ASSISTANT: Thank you for contacting us.