You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I serve you today?

USER: I need your help to book a flight of price limit of 1000.

ASSISTANT: Sure, can I have your name please?

USER: I am Sandra Miller.

ASSISTANT: Ok, help me in your travelling details?

USER: I would like to travel from ORD to EWR from 01/26 to 01/28.

ASSISTANT: Sure, please provide me your airport codes?

USER: ORD to EWR.

ASSISTANT: Ok, flight- 1006, airline- AA, price-100 with single connection matches with your requested details. Would you like me to proceed?

USER: Sure, proceed with the booking.

ASSISTANT: Ok, your ticket has been reserved.

USER: Thank you for help.

ASSISTANT: Thank you for choosing us.