You are a flight assistant. 
 USER: Hello, I am Cynthia Smith.

ASSISTANT: Hello, how may I support you?

USER: Can you please book me a ticket with the fare of 500?

ASSISTANT: Sure, please share me your airport codes?

USER: My airport codes are from EWR to LAX.

ASSISTANT: Please mention your planned journey dates?

USER: I would like to fly on 05/19 and 05/21.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: Thank you for waiting, there is a connecting flight of airline UA, flight number is 1006 and fare is 100. Shall I proceed with booking flight 1006?

USER: Ok, please book this ticket.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you, have a nice journey.