You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you out?

USER: I need to book a flight ticket from HOU to SEA, Can you please help me for booking?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: I would like to travel on 10/09 to return on 10/11.

ASSISTANT: Can I know your name please?

USER: Patrick Lewis here.

ASSISTANT: Do you need any specifications?

USER: I need a connecting flight.

ASSISTANT: Sorry, there are no flights found.

USER: Ok, no problem.

ASSISTANT: Thank you for reaching us.

USER: Thanks for your information.