You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you now?

USER: Can you aid me to book my ticket from ORD to ATL?

ASSISTANT: Sure, please share me your planned journey dates?

USER: My travel dates are Mar 23 and Mar 25 respectively.

ASSISTANT: Do you want a connecting flight?

USER: I prefer for connecting flight.

ASSISTANT: Is there any other requirement?

USER: My depart should be in the evening.

ASSISTANT: May I know your good name?

USER: Michael Miller here.

ASSISTANT: Thank you for the details, sorry there is no flight available on your given journey dates.

USER: Not an issue. Thank you for the help.

ASSISTANT: Thank you for visiting us, we hope see you again.