You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What service you are excepting from us?

USER: I want to modify my travelling details because the trip dates are wrongly printed in the past ticket. Can you please help me in changing the ticket?

ASSISTANT: Sure, I will definitely help you with that.

USER: Thank you for accepting my request.

ASSISTANT: Can I know your name?

USER: Sure, my name is Brandon Davis.

ASSISTANT: Sorry for the trouble, there is no reservation found on your name in our database.

USER: It's ok, thank you for searching my recent reservation status.

ASSISTANT: Thank you for contacting us.