You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you now?

USER: I want to cancel my reservation which is done recently due to some health issues, can you please help me in this?

ASSISTANT: Ok, may I know your name to check?

USER: Sure, my name is Samuel Scott.

ASSISTANT: Samuel Scott, please allow me to check with availability.

USER: Sure, I will wait.

ASSISTANT: I am very apologetic to say, there is no flight reservation available by your name.

USER: Ok, no problem.

ASSISTANT: Thank you for connecting with us.

USER: Anyways, thank you for your service.

ASSISTANT: Have a nice day.