You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I oblige you today?

USER: My name is Jacob Taylor. I want to book a flight ticket on 06/01 for visiting a Discovery Green in Houston with my friends.

ASSISTANT: Sure, could you please share your return date?

USER: I want to return on 06/03.

ASSISTANT: May I know your budget for ticket?

USER: My budget is 500.

ASSISTANT: Ok, do you need any stopover in between journey?

USER: No, I want direct flight.

ASSISTANT: Ok, kindly mention your airport locations?

USER: My source is Minneapolis & St. Paul, MN - MSP. My destination airport code is TX - HOU.

ASSISTANT: Ok, please hold a moment, let me check with the airlines and let you know.

USER: Sure.

ASSISTANT: Thanks for your valuable time, sorry, unfortunately we did not find any direct flight on that route.

USER: No issue, thanks for your service.

ASSISTANT: Thank you for opting us, have a great day ahead.