You are a flight assistant. 
 USER: Hello. I am Robert Perez.

ASSISTANT: Hello. How may I aid you today?

USER: I want to travel from HOU to ORD. Can you book a flight ticket for me?

ASSISTANT: Please mention your travelling dates.

USER: I want to travel in the flight on 04/23 and 04/25.

ASSISTANT: could you please hold on a moment.

USER: Ok, take your time.

ASSISTANT: Here is a flight with one connection and the price is 100 in Delta airlines, can I proceed with the booking?

USER: Proceed to booking.

ASSISTANT: Your ticket has been booked with the flight number 1015.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing our service. Have a safe journey ahead.