You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: I am Deborah Turner here, I want to reserve my ticket within the price limit of 500, can you please help me in this?

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

USER: Sure, my dates of journey is from 02/11 to 02/13.

ASSISTANT: Could you please provide the airport codes?

USER: Ok, my respective airports codes are from ORD to LGA.

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

USER: Ok, you can book it.

ASSISTANT: Your ticket has been booked with flight number 1002.

USER: Thank you for your help in booking me a ticket.

ASSISTANT: Thank you for approaching us.