You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Melissa Scott here.

ASSISTANT: How can I assist you at this moment?

USER: Owing to an emergency I have request you to cancel my reservation. Can you please help me out?

ASSISTANT: Sure Melissa Scott, I will help you with cancelling your reservation.

USER: Thank you.

ASSISTANT: Ok, please be hold on for moment to check your reservation status.

USER: Ok, take your time.

ASSISTANT: Sorry Melissa Scott, no reservation has found under your name to cancel.

USER: Oh! I think ticket was not booked due to server issue.

ASSISTANT: Thank you for choosing us, have a good day.

USER: Welcome.