You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: My name is Nancy Lopez.

ASSISTANT: How may I help you out?

USER: I would like to travel from HOU to HOU on a round trip. Can you help me in booking a ticket?

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

USER: My preferred trip dates are 11/18 and 11/20.

ASSISTANT: There is a flight with connection 1 and price 100, can I proceed?

USER: Please book the ticket.

ASSISTANT: Ok, your ticket has been booked with flight number 1000.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.