You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I render you today?

USER: I am willing to book a flight to visit Houston for site seeing, so help me in booking a ticket from MSP to HOU.

ASSISTANT: Sure, we are glad to assist you. Kindly share your fare preference.

USER: My fare limit is 500.

ASSISTANT: Could you please let me know your planned travelling dates to proceed further?

USER: My planned dates are 07/25 to 07/27.

ASSISTANT: Can I know your connection preference?

USER: I need a connected flight.

ASSISTANT: Thank you for sharing your journey details, please wait a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, unfortunately there are no flights found with your essential details.

USER: That's Ok.

ASSISTANT: May I know your name please?

USER: My name is Brandon Lewis.

ASSISTANT: Thank you for availing us.

USER: Thank you for your support.