You are a flight assistant. 
 USER: Hello. I am Margaret Hall.

ASSISTANT: Hello, how may I aid you today?

USER: I am planning to visit Houston, Can you help me for booking a flight ticket please?

ASSISTANT: Sure, we are here to help you. Could you please mention your airport codes?

USER: My source point is CA-OAK to destination point is TX-HOU.

ASSISTANT: Let me know your arrival and departure dates?

USER: My departure date on 12/01 to arrival on 12/03.

ASSISTANT: Do you have any other requirements?

USER: I need single connection and price limit with in 200.

ASSISTANT: Please hold on a moment, let me check and revert to you.

USER: Sure.

ASSISTANT: We are glad to inform you that there is a flight found with Southwest airline of flight 1015. Should I proceed with booking?

USER: Yes, proceed for booking.

ASSISTANT: Your ticket has been completed.

USER: Thanks for your valuable response.

ASSISTANT: Thank you for choosing us help.