You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Dorothy Thomas here.

ASSISTANT: How may I help you out?

USER: I am planning for my family trip to Chicago. So can you reserve a flight ticket for me?

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

USER: Ok.

ASSISTANT: Can I know your airport codes too?

USER: My airport codes for boarding the flight are LAX to ORd. My travelling dates would be from 02/18 to 02/20.

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

USER: Yes, I am ok with this connection flight. You can book the flight ticket.

ASSISTANT: Ok, your ticket has been booked with flight number 1006.

USER: Thank you.

ASSISTANT: Thank you for reaching us.