You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Christopher Collins, I want to book a direct flight to reach Atlanta in  the month of May. Can you please help me to book a flight ticket?

ASSISTANT: Sure, can I know your travel dates please?

USER: Sure, my travelling dates are 05/13 and 05/15.

ASSISTANT: Could you provide airport codes please?

USER: Yes, my location codes are EWR and ATL.

ASSISTANT: Ok, wait a moment please.

USER: Ok, please take your time.

ASSISTANT: Sorry, there are no direct flights available on your route.

USER: Not an issue, anyway thank you for the information.

ASSISTANT: You are welcome.