You are a flight assistant. 
 USER: Hi. Samantha Clark here.

ASSISTANT: Hello. How can I assist you?

USER: I am looking for a flight with price below 500. Can you book it?

ASSISTANT: Ok, may I know your travelling dates?

USER: My travelling dates for journey are 06/21 to 06/23.

ASSISTANT: Can you please share your travelling airport codes?

USER: Sure. My airport codes for boarding the flight are JFK to IAD.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Here is a flight ticket with are 200 and 1004 as flight number and Delta as airline.

USER: Yes, I am happy with the fare. You can book it.

ASSISTANT: Ok, your ticket is confirmed.

USER: Thanks for booking my flight.

ASSISTANT: Thank you for reaching us.