You are a flight assistant. 
 USER: Hi, I am Dorothy Wright.

ASSISTANT: Hello, how can I provide assistance for you today?

USER: I want to go for LGBT festival at Houston, please book a flight ticket under price 200.

ASSISTANT: Sure, I need your selected airport codes, that you wish to board from?

USER: My boarding point is Minneapolis, MSP.

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

USER: My travelling dates are from 07/13 to 07/15.

ASSISTANT: Mention your destination airport code?

USER: My landing point is Houston, IAH.

ASSISTANT: Do you need any stop over in between the journey?

USER: I need a stopover in between the journey.

ASSISTANT: There are no flights available with your requirements.

USER: No issues, thanks for the information.

ASSISTANT: Thank you for choosing us.