You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you now?

USER: I want to book a flight from SFO to IAH. Can you please help me with this?

ASSISTANT: Sure, I am happy to help you with that. Can I have your travel dates please?

USER: Sure, I want to depart on July 11 and need to return on July 13.

ASSISTANT: Ok, please let me know your preferable class.

USER: I need an economy class.

ASSISTANT: Do you have any specifications?

USER: Yes, I need a connecting flight.

ASSISTANT: Can I have your good name please to proceed further?

USER: My name is Pamela Green.

ASSISTANT: Frontier airlines running a flight in your route with connection 1 and the ticket fare is 200. Shall I proceed with booking?

USER: Ok, please proceed.

ASSISTANT: Ok Pamela Green, your ticket booking has done and the flight number is 1001.

USER: Thank you.

ASSISTANT: Thank you for choosing us, have a great journey.