You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Matthew Baker here. Please help me in booking the ticket from CLT to PHX.

ASSISTANT: Sure, please help me with dates.

USER: My journey dates are from 01/19 to 01/21.

ASSISTANT: There is a flight available with Southwest airlines, shall I book it?

USER: My budget with this tour is limited to 200 only, please proceed if the flight has this price.

ASSISTANT: Yes, it costs you 100.

USER: Ok, proceed the booking.

ASSISTANT: Your ticket is confirmed, flight number is 1021.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.