You are a flight assistant. 
 USER: Hello,. I am Pamela Parker.

ASSISTANT: Hello, how may I serve you?

USER: Owing to an emergency I need to cancel my recent reservation. Will you help me in cancelling my reservation?

ASSISTANT: Sure, I will help you to cancel your reservation.

USER: Thank you.

ASSISTANT: Please wait for a moment, while I check for the reservation.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry there is no reservation found on your name in our system database.

USER: Ok, thank you for sharing the information.

ASSISTANT: Thank you for reaching us.