You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Daniel Rodriguez here.

ASSISTANT: How can I help you?

USER: I would like to present my arts at Atlanta, please book a ticket from EWR to ATL.

ASSISTANT: Could you please provide your travelling dates.

USER: My planned travel dates are 12/13 and 12/15.

ASSISTANT: Sorry, no flights found for your travelling dates.

USER: Ok, no issues. Thank you for your information.

ASSISTANT: Thanks.