You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Stephanie Mitchell. I am planning to meet my grand parents who are staying in MSP, will you please aid me in booking a flight ticket from HOU?

ASSISTANT: Please tell me your travelling dates?

USER: My travelling dates are Dec 22nd and Dec 24th.

ASSISTANT: Can you please tell me your journey timings?

USER: The return time should be evening.

ASSISTANT: Do you have any connection limit?

USER: No, I need a direct flight.

ASSISTANT: Sorry, no flights found on your route.

USER: Ok, no issues.

ASSISTANT: Thank you for reaching us.

USER: Thank you.