You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Can you aid me in booking a flight ticket from PHX to DCA?

ASSISTANT: Sure, may I know your planned travel dates please?

USER: I am planning to start on June 2nd and return back on June 4th.

ASSISTANT: Can I have your name please?

USER: I am Susan Harris.

ASSISTANT: Do you have any connection preference?

USER: Make sure that connection limit is 1.

ASSISTANT: Do you have any other specifications?

USER: No, all preferences have been mentioned.

ASSISTANT: Susan Harris, no flights has been found on your planned travel dates.

USER: No issues. Thank you for checking.

ASSISTANT: Thank you for choosing us.