You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,.

USER: I am Andrew Hall, I want to cancel my reservation, can you help me?

ASSISTANT: Sure, we are here to aid you.

USER: Thank you.

ASSISTANT: Please, give me a minute I will check with the reservation and let you know.

USER: Sure.

ASSISTANT: Thanks for your time. Sorry Hall, there is no active reservation found on your name.

USER: Ok, thank you for response.

ASSISTANT: Thank you for opting us.