You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you with today?

USER: I'm Gary Lopez. I need to attend a marriage in IAD, can you book a ticket from PHX?

ASSISTANT: Sure, I can help you with that. Gary, can you please provide your travelling dates?

USER: My planning dates are from 02/04 to 02/06.

ASSISTANT: Thank you for providing.

USER: The price limit should be 500.

ASSISTANT: Sure, let me check that for you.

USER: OK.

ASSISTANT: Gary, there is a flight available at your requested dates with price 100. Would you like me to proceed the booking?

USER: Please book my ticket.

ASSISTANT: Sure. I have successfully booked the flight ticket for you.Your flight number is 1027 and the airline is Delta. Have a great journey.

USER: Thank you for your help.

ASSISTANT: You're welcome.