You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am planning to meet my brother at Houston, will you help me in booking the flight ticket from MSP to HOU?

ASSISTANT: Sure, may I know your travelling dates?

USER: My preferable journey dates are Apr 22 and Apr 24.

ASSISTANT: Is there any connection limit?

USER: I need a flight with single connection.

ASSISTANT: May I know your good name?

USER: Myself Sandra Lee.

ASSISTANT: Do you have any other requirements?

USER: I would like to return in evening time.

ASSISTANT: Sorry, there were no flights found with your required dates to travel.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for choosing us.