You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you?

USER: I am planning to travel from LAX to HOU, help me in booking?

ASSISTANT: May I know on what dates would you like to travel?

USER: My travelling dates are May 20 to 22.

ASSISTANT: Do you have any other requirements?

USER: I want to departure in evening and I will be back on morning in single connection flight.

ASSISTANT: May I know your name?

USER: Myself Nicholas Collins.

ASSISTANT: There is a connected flight in Southwest airlines with the fare 200.

USER: Please proceed.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: Thank you.