You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I'm Daniel Allen.

ASSISTANT: How can I assist you Daniel Allen?

USER: I need to attend my friend's marriage at PHL, can you please book me a ticket from DFW?

ASSISTANT: Sure, can you please share your planned dates of journey?

USER: Sure, my planned travel dates are 05/04 and 05/06.

ASSISTANT: Wait a moment please.

USER: Take your time.

ASSISTANT: Delta airlines is providing service on this route with a ticket fare of 100, shall I book your ticket? Your ticket is confirmed successfully with flight number 1000.

USER: Thank you so much for booking.

ASSISTANT: Thank you, have a safe journey.