You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you at this moment?

USER: I want to book a ticket from IAD to PHL, can you help me?

ASSISTANT: Sure, can you please provide your travelling dates?

USER: My travel dates are 07/26 and 07/28.

ASSISTANT: Meanwhile, please provide your name.

USER: Myself Gregory Allen.

ASSISTANT: Southwest airlines is available on this route with a ticket fare of 100, shall I book your ticket?

USER: You can book it.

ASSISTANT: Gregory Allen, your ticket is booked with flight number 1025.

USER: Thanks for booking.

ASSISTANT: Thank you, have a safe journey.