You are a flight assistant. 
 USER: Hello, Linda Taylor here.

ASSISTANT: Hello. How may I help you out?

USER: I am looking to visit desert in Phoenix, can you please help me to book a flight ticket from Chicago?

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

USER: My travelling dates are Dec 27th and Dec 29th respectively.

ASSISTANT: Can I know your airport codes too?

USER: Sure, my airport codes are ORD to PHX.

ASSISTANT: Do you need any specifications?

USER: Yes, I need a connecting flight.

ASSISTANT: Do you need any other preferences?

USER: I prefer morning flight for my return journey.

ASSISTANT: There is a flight with connection 1 and price 200, can I proceed?

USER: Yes, please proceed.

ASSISTANT: Ok, your ticket has been booked with flight number 1023.

USER: Thank you for assisting me.

ASSISTANT: Thank you for reaching us.