You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Justin Evans.

ASSISTANT: How may I assist you?

USER: Can you help me to book a flight ticket from DEN to OAK?

ASSISTANT: Sure, I will help you. Can I have your planned travel dates?

USER: I am travelling from Sept 12 to Sept 14.

ASSISTANT: Do you have any specifications?

USER: Yes, I need a lay by In between my journey. I can afford 500 only.

ASSISTANT: Please wait a moment, I will find the availability of flights.

USER: Sure.

ASSISTANT: I found an economy class ticket in JetBlue airlines with fare 100 and it has single connection. Can I book your ticket?

USER: Please proceed to book with this airline.

ASSISTANT: Ok, your booking is confirmed with flight number 1013.

USER: Thank you for the support.

ASSISTANT: Thank you for choosing our services.