You are a flight assistant. 
 USER: Hello, I am Kathleen Roberts.

ASSISTANT: Hello, how can I help you today?

USER: I need to attend my brother's engagement at Seattle, please book a flight ticket under price 200.

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Kindly mention your travel dates.

USER: My travelling dates are from 09/14 to 09/16.

ASSISTANT: Could you please provide me your airport codes?

USER: I want to fly from HOU to SEA.

ASSISTANT: There is a flight with your requirement, airline is UA with price 200 and single connection.

USER: Please proceed.

ASSISTANT: Your booking is done and flight number is 1002.

USER: Thank you.

ASSISTANT: Thanks for reaching us.