You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Mary Lewis.

ASSISTANT: How can I assist you at this moment?

USER: I planned to attend for a seminar in MSP, can you please help me to book a flight ticket from DCA?

ASSISTANT: Sure, I will help you with this. Can you please provide your journey dates to proceed further?

USER: I prefer to travel on 09/29 and 10/01.

ASSISTANT: Wait a moment please.

USER: Sure.

ASSISTANT: UA airlines is providing connecting flight on this route with a ticket fare of 100, shall I book your ticket?

USER: Ok, please confirm my booking.

ASSISTANT: Mary Lewis, your ticket is booked in flight number 1025.

USER: Thank you for your help.

ASSISTANT: Thank you and have a safe journey.