You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I want to attend a Seminar in DCA. Can you please help me for booking the flight ticket from PHX?

ASSISTANT: Please provide your journey dates?

USER: My travelling dates are Aug 12 and Aug 14.

ASSISTANT: Is there any preference?

USER: I prefer single connecting flight.

ASSISTANT: Can I know your name?

USER: Jerry Perez.

ASSISTANT: Found ticket with Delta airlines for price 100 having flight number 1000. Shall I book a ticket?

USER: Please proceed.

ASSISTANT: Your ticket is booked.

USER: Thanks for helping me.

ASSISTANT: Thank you.