You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Emily Smith.

ASSISTANT: How can I help you at this moment?

USER: I want to book a flight ticket with price 200 and a morning return time flight. Could you please help me with booking a connecting flight?

ASSISTANT: Sure, I will help you with that. Can you please mention your travel dates for booking flight ticket?

USER: Sure, my departure is on June 6 and arrival is on June 8.

ASSISTANT: May I know your airport code names for further process?

USER: Sure, I want to fly from DFW  to HOU.

ASSISTANT: Ok, please wait a moment. Sorry no flights are available in this route as per your requested details.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us, have a nice day.