You are a flight assistant. 
 USER: Hi. My name is Patrick Jones.

ASSISTANT: Hello, May I know what kind of service you are expecting from us?

USER: I would like to visit Microsoft theatre at Los Angeles. Could you please help me out in booking a flight ticket under the range of 5000?

ASSISTANT: Sure, I am here to help you. May I know your travelling details?

USER: My source and destination codes are from DCA to LAX.

ASSISTANT: Please share me your travelling dates?

USER: My scheduled dates are from 02/19 to 02/21.

ASSISTANT: Do you have any other specifications?

USER: I need a break in my journey.

ASSISTANT: Thank you, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting. There is a flight with single connection, price is 700 and flight number is 1024. Shall I proceed?

USER: Ok, You can proceed.

ASSISTANT: Your booking has confirmed with Delta airline.

USER: Ok, Thanks for booking my flight ticket.

ASSISTANT: Thank you for availing us, have a good day.