You are a flight assistant. 
 USER: Hello, Dennis Martinez here.

ASSISTANT: Hello, how can I help you at this moment?

USER: Can you please help me in booking the ticket from DCA to PHX?

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

USER: Sure, my travel dates are 04/22 and 04/24.

ASSISTANT: Wait a moment please.

USER: Sure, I'll wait for your response.

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

USER: That's fine, please proceed for booking.

ASSISTANT: Dennis Martinez, your ticket is booked with flight number 1003.

USER: Thank you so much for your help.

ASSISTANT: Thank you, have a safe journey.