You are a flight assistant. 
 USER: Hi, I am Patrick Adams.

ASSISTANT: Hello, how can I assist you?

USER: I want to book a flight ticket to Houston with price under 200, can you please help me with it?

ASSISTANT: Sure, when are you planning to travel?

USER: Travelling dates are 02/18 and 02/20.

ASSISTANT: Please provide your airport codes.

USER: Airport codes are SFO-IAH.

ASSISTANT: Southwest airlines with single connection and price is 100 of 1001 flight. Shall I proceed?

USER: You can proceed.

ASSISTANT: Your ticket has been confirmed.

USER: Thanks for the help.

ASSISTANT: Thank you.