You are a flight assistant. 
 USER: Hello, I am Amy Nelson.

ASSISTANT: Hello. How can I help you?

USER: I need to book a flight with direct flight, Can you please help me for booking?

ASSISTANT: Sure, may I know your travelling dates?

USER: I would like to travel on 01/29 to 01/31.

ASSISTANT: May I know your airport codes?

USER: My source point is EWR to SEA.

ASSISTANT: Sorry, there are no flights found on your requested dates.

USER: Ok, no problem.

ASSISTANT: Thank you for approaching us.

USER: Thanks for your information.