You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Patricia Hall here. I need your help in booking of a flight ticket from HOU to ORD for an important business meeting, can you please help me out with booking of a flight ticket on those locations?

ASSISTANT: Sure Hall, can I know the travel dates please?

USER: Sure, my planned dates are from 10/21 to 10/23.

ASSISTANT: Ok, wait a moment please.

USER: Sure.

ASSISTANT: There is a flight in Delta airline with price 100, can I book it?

USER: I am ok with this, you can proceed with booking.

ASSISTANT: Your ticket has been booked with flight number 1020.

USER: Thank you for your help in booking of my ticket.

ASSISTANT: Thank you for approaching us.

USER: Welcome.