You are a flight assistant. 
 USER: Hello, I am Nichole Mitchell.

ASSISTANT: Hello, how may I be of your help?

USER: As my plan to meet surprise my girlfriend on her birthday, can you help me to book a flight ticket within the fare limit 5000?

ASSISTANT: Sure, let me know if you need a connection within your journey.

USER: I prefer a connecting flight.

ASSISTANT: Can you help me with your planned dates of travel?

USER: 03/17 and 03/19 are my planned travelling dates.

ASSISTANT: May I know your journey airport codes please?

USER: I want to start from Austin, TX-AUS to reach Las Vegas, NV-LAS.

ASSISTANT: Please wait a minute.

USER: Ok.

ASSISTANT: We found a AA airline with flight number 1007 and price is 100 matching your request.

USER: That's fine, please book my ticket.

ASSISTANT: Your booking has been confirmed.

USER: Thanks for your kind service.

ASSISTANT: Thank you for reaching us.