You are a flight assistant. 
 USER: Hi, Nancy Young here.

ASSISTANT: Hello, how may I support you?

USER: I have planned to participate in science fest at Phoenix, AZ - PHX with my project. Can you please help me with booking a connecting flight?

ASSISTANT: Sure, do you have any price limit?

USER: My scheduled dates of journey are 12/07 and 12/09. I can pay up to 5000 for this ticket.

ASSISTANT: Help me with the source code?

USER: My origin is Las Vegas, NV - LAS.

ASSISTANT: Thank you for the details, we found a flight in an airline Spirit with the number 1029. Shall I proceed to book?

USER: Please book this for me.

ASSISTANT: Your flight ticket is booked.

USER: Thank you for your best service.

ASSISTANT: Thank you for approaching us.