You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello,. How can I aid you today?

USER: Please cancel my recent reservation owing to an emergency.

ASSISTANT: Sure, we are here to help you. Please, let me know your name to check with the reservation.

USER: Ok. I am Alexander Baker.

ASSISTANT: Please, wait.

USER: Sure.

ASSISTANT: Thanks for your time. We regret to say that, there is no active reservation found on your name.

USER: Thanks for the help.

ASSISTANT: Thank you for reaching us. Hope to serve you again.