You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you today?

USER: My name is Charles Rodriguez, I want to book a flight from BOS to HOU. Can you help me with booking?

ASSISTANT: Sure, I am here to help you. May I know your travel dates please?

USER: I will fly on Dec 15 and return on Dec 17.

ASSISTANT: Ok, do you have any other requirements?

USER: I need a connecting flight and my depart flight in morning.

ASSISTANT: Ok, hold on for a moment. Let me check the best available flight for you.

USER: Sure.

ASSISTANT: Sorry Charles Rodriguez, there are no flights available on your requested dates.

USER: Ok, thank you for the information.

ASSISTANT: Welcome, thank you for choosing us. Have a great day.