You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I serve you?

USER: I am Katherine Taylor. I want to celebrate my mother birthday at Orlando, FL -- MCO. Can you please help me with book a ticket with in the range 200?

ASSISTANT: Sure.

USER: Thank you.

ASSISTANT: Can I know your travelling dates?

USER: My travelling dates are 05/21 to 05/23.

ASSISTANT: Where would you like to start from?

USER: I would like to start from Houston, TX - HOU.

ASSISTANT: Do you need any break?

USER: I need a break in between my journey.

ASSISTANT: We found a SouthWest airline, flight number:1022 and the price is 100.

USER: Please proceed to book.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for opting us.

ASSISTANT: Thank you for approaching us.