You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you out?

USER: I need to amend my reservation as I am not able to make my trip. Can you help me about that?

ASSISTANT: Sure, I will help you in changing the reservation. May I know your name please?

USER: Sure, my name is Ruth Lee.

ASSISTANT: Sorry, there are no reservations found in our database.

USER: Not a problem, anyways thank you for the information.

ASSISTANT: Thank you for reaching us.