You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I assist you?

USER: I am Melissa Wilson. Due to some emergency, I need to cancel my reservation.

ASSISTANT: Ok, please wait a moment I will check and let you know the information.

USER: Sure.

ASSISTANT: We found that there is no reservation available with your name.

USER: OK, thanks for the information.

ASSISTANT: Thank you for reaching us.