You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Gary Allen here.

ASSISTANT: How can I aid you today?

USER: Please help me out in booking the ticket from HOU to MSP.

ASSISTANT: Sure, can you share me your planning dates?

USER: My trip dates will be May 17 to May 19.

ASSISTANT: Do you have any connection limit?

USER: I want a connected flight.

ASSISTANT: Is there any other specifications?

USER: No.

ASSISTANT: Sorry, no flights are available on your journey dates.

USER: That's ok, thank you.

ASSISTANT: Thank you for opting us.