You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Mary Campbell.

ASSISTANT: How may I help you?

USER: Can you please make a plane ticket which is a round, the airport code is IAH?

ASSISTANT: Sure, I will help you out. May I know your travelling dates please?

USER: Ok, my preferred travel dates are 08/15 and 08/17.

ASSISTANT: Ok, please wait a moment.

USER: Ok, take your time.

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

USER: Yes, you can proceed with the booking.

ASSISTANT: Ok, your ticket has been booked.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.