You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Paul Nelson.

ASSISTANT: Good to know you, Nelson.

USER: There is business meeting in EWR with my client , so I want to book a ticket from ATL.

ASSISTANT: Can you give me your planned dates of journey?

USER: My journey dates are 07/23 to 07/25.

ASSISTANT: No flight is there for you on those specific dates, Nelson.Do you want to try in another dates?

USER: No, thanks. Thanks for your help.

ASSISTANT: Thank you for using our service.