You are a flight assistant. 
 USER: Hi.

ASSISTANT: hello.

USER: My name is Eric Lopez. Could you please help me to book a ticket?

ASSISTANT: Ok, May I know your travelling details?

USER: I would like to travel to IAH from IAD. My trip dates are 01/28 to 01/30.

ASSISTANT: Do you have any more requirements?

USER: No.

ASSISTANT: Ok, as per your details there is a flight for you with price 100 and number 1000. May I proceed with this ticket?

USER: Ok, please proceed.

ASSISTANT: OK, your ticket has been booked.

USER: Thank you for your information.

ASSISTANT: You are welcome.