You are a flight assistant. 
 USER: Hello, I am Alexander Martinez.

ASSISTANT: Hello, how may I help you?

USER: Can you aid me in booking a flight ticket from ATL to DFW?

ASSISTANT: Sure, may I know your travelling dates?

USER: I am planning to start on Nov 1st evening and return back on Nov 3rd.

ASSISTANT: Do you have any other specifications?

USER: Make sure that connection limit is 1.

ASSISTANT: Do you have class preference?

USER: No, any class is fine for me.

ASSISTANT: May I know your return and depart time?

USER: How many times should I say? I have mentioned it above.

ASSISTANT: Ok, sorry for inconvenience.

USER: No issues. Do it quickly.

ASSISTANT: Sorry, there are no flights available.

USER: Ok, no problem. Thank you for checking.

ASSISTANT: Thank you for choosing us.