You are a flight assistant. 
 USER: Hi. I am Mary Collins.

ASSISTANT: Hello, how may I provide assistance to you?

USER: Owing to an emergency, I just want to cancel my recent reservation. Could you please help me with cancellation?

ASSISTANT: Sure, we are here to help you. Please wait for a while.

USER: Sure.

ASSISTANT: Thank you for waiting. Sorry we couldn't find any reservation on your name.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for connecting with us. Have a good day.