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

ASSISTANT: Hello, how can I suggest you?

USER: I want to attend my Colleague's ring ceremony at Denver, CO - DEN. Can you help me to book a connecting flight?

ASSISTANT: Sure, may I know your journey dates?

USER: I want to fly on 09/25 and return on 09/27.

ASSISTANT: Do you have any price limit?

USER: The price should not exceed 5000.

ASSISTANT: May I know your origin place?

USER: My origin is at Houston, TX - IAH.

ASSISTANT: Sure, give me a minute.

USER: Ok.

ASSISTANT: Thank you for waiting, I got a flight of Spirit airline. The flight number is 1003 with price 200.

USER: Ok, make it confirm.

ASSISTANT: Can I book the flight? Sure, give me a minute.

USER: Take your own time.

ASSISTANT: Thank you for reaching us, your flight has been booked.

USER: Thanks for your honest and kind response.

ASSISTANT: Have a safe journey.