You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Susan Mitchell here.

ASSISTANT: How may I assist you today?

USER: Could you please avail me a flight ticket from HOU to ORD?

ASSISTANT: Sure, I will help you. Please help me with your planned travelling dates.

USER: My trip dates are 02/27 - 02/29.

ASSISTANT: Do you need a break in your journey?

USER: I need a single connection.

ASSISTANT: Please help me with your preferred class to fly.

USER: I am ok with any class.

ASSISTANT: Do you have any other preferences in your journey?

USER: No, thank you for asking.

ASSISTANT: We have a connecting flight operated by Frontier Airlines with a fare of 100. Is it ok for you?

USER: Please reserve.

ASSISTANT: I have booked your ticket in flight-1000. It departs at 10:00 hours and arrives at 12:00 hours.

USER: Thank you.

ASSISTANT: Thank you for reaching us. Have a great time.