You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you at this moment?

USER: Myself Michael Hernandez. Due to some business conference meeting, I am going to cancel my reservation. Can you please check for this?

ASSISTANT: Sure, I am here to help you to cancel that reservation, please wait for a minute to check the reservation details.

USER: Sure, I will wait for your kind response.

ASSISTANT: Sorry, I could not find any reservation with your name in our database to cancel that reservation.

USER: Not a big deal, anyway thank you very much for your service.

ASSISTANT: It's my pleasure.