You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I am planning to book a ticket from SFO to HOU. Can you please help me out?

ASSISTANT: Sure, let me know your trip dates please?

USER: I am planning to travel on Mar 21 and return back on Mar 23.

ASSISTANT: Any requirements to be met?

USER: I am looking for a connecting flight.

ASSISTANT: Can you mention your name please?

USER: My name is Debra Robinson.

ASSISTANT: American Airlines has a connecting flight with number 1015 for fare 200, shall I proceed?

USER: That's fine, please proceed the booking.

ASSISTANT: Your ticket is reserved in economy class.

USER: Thank you for your service.

ASSISTANT: Thank you for opting us.