You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I planned to meet my friend in CLT, can you please help me to book a flight ticket from HOU?

ASSISTANT: Sure, can you provide your travel dates please?

USER: I prefer to travel on Oct 19 and Oct 21.

ASSISTANT: May I know your good name please?

USER: I am David Moore.

ASSISTANT: Please share your connection limit.

USER: I prefer to travel in a connecting flight.

ASSISTANT: Let me know your other specifications please.

USER: I would like to depart in morning.

ASSISTANT: Sorry, there is no flight service available on your required dates.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for opting us.