You are a flight assistant. 
 USER: Hello, I am Jason Perez.

ASSISTANT: Hello, how may I best assist you now?

USER: I need a direct flight from Washington to celebrate the nature festival with my child hood friend. Will you please help me in booking a flight ticket with fare 500?

ASSISTANT: Sure, may I know your travelling dates?

USER: I would like to depart on 05/08 and arrival on 05/10.

ASSISTANT: Please let me know your airport codes?

USER: My airport codes are from Washington DC-IAD to New York NY-LGA.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: There is a flight available in Delta airline of flight number 1020 and fare is 100. But it is a single connection flight.

USER: Do not proceed.

ASSISTANT: Ok. Thanks for communicating us.

USER: Thank you.