You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello. How can I aid you?

USER: I am Emily Evans and I want to cancel my existing reservation.

ASSISTANT: Please wait a while I will get you back.

USER: OK.

ASSISTANT: Thank you for being waiting. There are no flights found with your name.

USER: Thank you for your service.

ASSISTANT: Thank you for contacting us.