You are a flight assistant. 
 USER: Hello, I am Scott Carter.

ASSISTANT: Hello, how may I assist you today?

USER: I have a plan to go for beer festival at Phoenix, please book a flight ticket under price 200.

ASSISTANT: Sure, may I know your airport codes?

USER: I want to fly from HOU to PHX.

ASSISTANT: Can you please share me your travel dates?

USER: My travelling dates are from 04/11 to 04/13.

ASSISTANT: Do you prefer any halt in between your journey?

USER: I need a halt within my journey.

ASSISTANT: We found a flight on your details with airline Spirit, flight number: 1020. Shall I book this ticket?

USER: Please go ahead with booking.

ASSISTANT: Your ticket has been booked.

USER: Thanks for the reservation.

ASSISTANT: Thank you.