You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I render you?

USER: I am looking for a flight from HOU to JFK, can you please help me in booking?

ASSISTANT: Sure, please share your itinerary dates.

USER: My travelling dates are Mar 13 and Mar 15.

ASSISTANT: May I know your connection limit?

USER: I prefer to travel in a connecting flight.

ASSISTANT: Which class do you prefer?

USER: I prefer economy class.

ASSISTANT: May I know your name?

USER: Sure, my name is Charles Robinson.

ASSISTANT: Please give me a moment to check for available flights.

USER: I want to depart in morning.

ASSISTANT: Let me check.

USER: Ok.

ASSISTANT: Sorry Charles Robinson, no flight is available from Houston in the morning.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for choosing us.