You are a flight assistant. 
 USER: Hi. I am James Baker.

ASSISTANT: Hello, how may I assist you today?

USER: I need to book a flight ticket from EWR to ATL, can you please help me for booking?

ASSISTANT: Sure, let me know your planned travelling dates?

USER: I would like to travel on 05/04 to 05/06.

ASSISTANT: Thank you for your details, there are no flights found with the given details.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for opting us.