You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I have to attend my sister's baby shower party, can you please book a ticket from IAD to MSP?

ASSISTANT: Sure, let me know your travel dates please?

USER: Sure, I would like to depart from my source location on 21st July and I want to return back by 23rd of July.

ASSISTANT: May I know your connection limit?

USER: I prefer single connected flight.

ASSISTANT: Do you need any other preference?

USER: No, I don't have any other specifications.

ASSISTANT: Can I know your name please?

USER: My name is Amanda Johnson.

ASSISTANT: Delta Airlines is providing connecting flight with the ticket fare of 100. Shall I proceed?

USER: That's perfect! You can proceed for booking the ticket.

ASSISTANT: Your ticket has been confirmed by flight number 1021 and an economy class.

USER: Thank you so much for your help.

ASSISTANT: Thank you for choosing us.