You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: Can you please reserve a flight ticket from HOU to LGA?

ASSISTANT: May I know your trip dates to go?

USER: Sure, my planned trip dates are Feb, 02 and 04 respectively.

ASSISTANT: Let me know your connection limit.

USER: I prefer for a direct flight.

ASSISTANT: Any more specifications?

USER: No, thank you for asking.

ASSISTANT: Sorry, there is no flight found on your route.

USER: Ok, Thank you.

ASSISTANT: May I know your name?

USER: Frank Wilson here.

ASSISTANT: Thanks for reaching us.