You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Stephen Davis here.

ASSISTANT: How can I assist you today?

USER: I have to meet my business partner at Atlanta, could you please help me to book my flight ticket from DFW to ATL?

ASSISTANT: Sure, I'll help you in that. May I know your preferable travel dates please?

USER: I will depart on 01/22 and return back on 01/24.

ASSISTANT: Fine, please be on hold.

USER: Sure, I will wait for your response.

ASSISTANT: There are no flights available for you on those dates, Davis.

USER: No problem, I will find an other way to travel. Thank you for the information.

ASSISTANT: Thank you for choosing us.