You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER: I am looking for a flight from IAD to ATL, can you help me in booking?

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

USER: Sure, my planned travel dates are Apr 18 and Apr 20.

ASSISTANT: Do you want a connecting flight for your journey?

USER: Please look for a connecting flight.

ASSISTANT: Is there any other requirement related to booking?

USER: I would like to start my journey for the afternoon flight.

ASSISTANT: May I know your good name?

USER: Myself Janet Taylor.

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

USER: That's ok, no problem. Thank you for the information.

ASSISTANT: Thank you for visiting us, have a nice day.