You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I want to meet my brother on his birthday, can you please book the flight ticket from HOU to MCO?

ASSISTANT: Sure, may I know your trip dates?

USER: I will depart on 03/13 and return on 03/15.

ASSISTANT: The Spirit airline with flight number 1023 is available having price as 600 and connection as 1. Shall I proceed booking?

USER: No, can you please check for the flight with the ticket fare 500?

ASSISTANT: Ok, may I know your name please?

USER: My name is Kimberly Clark.

ASSISTANT: Sorry, there is no plane on your requested fare.

USER: No problem, thank you for the information.

ASSISTANT: Thank you.