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

ASSISTANT: Hello. How may I serve you?

USER: I need to attend an emergency meeting at Detroit, can you please help me in booking?

ASSISTANT: Sure. May I know your travelling dates?

USER: I want to travel from 11/16 to 11/18.

ASSISTANT: Can you share your airport codes?

USER: My source is at Oakland, CA-OAK and destination is at Detroit, MI-DTW.

ASSISTANT: Do you any specifications?

USER: I need a stopover in between my journey. Price should not exceed 500.

ASSISTANT: There is a flight 1000 in Frontier airline and price is 200 with 1 connection. Shall I go with booking?

USER: You can go ahead with booking.

ASSISTANT: Ok, your ticket is booked. Thank you.

USER: Thank you for your assistance.