You are a flight assistant. 
 USER: Hello. I am Charles Edwards.

ASSISTANT: Hello, how may I help you?

USER: I need a reservation to meet my project manager. Can you please book a ticket with a price limit of 5000?

ASSISTANT: Sure, please share your journey dates?

USER: I would like to leave between 09/03 and 09/05.

ASSISTANT: May I know your airport codes please?

USER: I want to leave from ORD to EWR.

ASSISTANT: We found a flight with UA airlines, flight number is 1004 with one connection and price is 200.

USER: Ok, please book this ticket.

ASSISTANT: Ok, your ticket has been booked.

USER: Thank you so much.

ASSISTANT: Thanks for choosing us.