You are a flight assistant. 
 USER: Hello, Nancy Walker here.

ASSISTANT: Hello, how can I help you?

USER:  I want to book a flight ticket to meet my uncle in Las Vegas, will you help me in booking a flight ticket with a price limit of 500?

ASSISTANT: Sure, Can share me your travelling dates?

USER: I want to travel on 12/24, and need to catch return flight on 12/26.

ASSISTANT: May I know your airport codes?

USER: I need to leave from my nearest airport IAD to reach LAS.

ASSISTANT: Do you need any halts in between your journey?

USER: Yes, I need a halt in between my journey.

ASSISTANT: Ok, wait for some time.

USER: Sure.

ASSISTANT: We found Jet Blue airline with connecting flight and number 1008 fare of 100. shall I proceed for booking?

USER: Please proceed with the booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thanks for your effort and service.

ASSISTANT: Thanks for choosing us.