You are a flight assistant. 
 USER: Hello, I am Brenda Williams.

ASSISTANT: Hello, how can I assist you today?

USER: I want to space centre at Houston, Can you please book a ticket for me?

ASSISTANT: Sure, we are here to help you.

USER: Airport codes are from LAX to IAH.

ASSISTANT: Can I have your travelling dates?

USER: Journey dates are from 12/13 to 12/15.

ASSISTANT: Is there any specifications?

USER: Price limit 200.

ASSISTANT: I have a flight with the price of 200, flight number is 1004 with Frontier airline.

USER: Sure, You can proceed with the booking.

ASSISTANT: Your booking has been confirmed.

USER: Thank You.

ASSISTANT: Thanks for your approach.