You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Jacob Williams here. I need to cancel my recent recent reservation, can u please help me out?

ASSISTANT: Sure, I will try to cancel your reservation, please wait for a minute.

USER: Sure, take your time.

ASSISTANT: Thanks for your waiting, I could not find any reservation with your name. My pleasure.

USER: That's not an issue. Thank you for your service.

ASSISTANT: Thanks for choosing us.