You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Can you please help me in booking he flight ticket from HOU to JFK?

ASSISTANT: Can you share your trip dates?

USER: My travel dates are Dec 4 and Dec 6.

ASSISTANT: Do you need any connections?

USER: I need a direct flight.

ASSISTANT: Are there any other preferences?

USER: I don't have any other preferences?

ASSISTANT: May I know your name?

USER: Virginia Williams.

ASSISTANT: Sorry, there is no flight found with your details.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for reaching us.