You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Can you please help me in booking a flight ticket from HOU to ATL?

ASSISTANT: Sure, I will assist you with that. Can you please mention your preferable travel dates?

USER: I want to fly on Dec 29 and return on Dec 31.

ASSISTANT: May I know your name for further process?

USER: Myself Samantha Lee.

ASSISTANT: Do you have any another specifications?

USER: I would like to return in the morning time.

ASSISTANT: Sorry, no flights are available in this route as per your requested dates.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for reaching us.