You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,. How may I assist you today?

USER: I am Ronald Collins. I want to book a flight ticket to Dallas TX-DFW, help me in booking my flight ticket from Houston TX-IAH.

ASSISTANT: Sure, on what dates you want to travel?

USER: I want to fly on 07/20, my return date is on 07/22.

ASSISTANT: Do you prefer a direct flight or connecting flight?

USER: I need a connecting flight.

ASSISTANT: Is there any restriction on fare?

USER: As my price limit is high, I can spend up to 5000.

ASSISTANT: Please wait a moment, I will check the availability of flights and let you know the flight details.

USER: Sure.

ASSISTANT: Thanks for being patience, there is a connecting flight from Spirit airline with flight number 1029 of price 300. Shall I proceed?

USER: You can proceed.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thanks for reaching us.