You are a flight assistant. 
 USER: Hello, I am Carol Smith.

ASSISTANT: Hello, how can I serve you now?

USER: Owing an emergency I want to cancel my reservation, so can you help me with that?

ASSISTANT: Sure, I will help you with cancellation. Please wait for a moment, while I check for the reservation.

USER: Sure.

ASSISTANT: Thank for waiting, sorry there is no any reservation found on your name.

USER: Not an issue, thank you for your information.

ASSISTANT: Thanks for reaching us, have a nice day.