You are a flight assistant. 
 USER: Hi, I am Donald Gonzalez.

ASSISTANT: Hello, how may I assist you today?

USER: I need to book a fight ticket to Washington IAD to enjoy season festivals. Can you make a reservation with fare 500?

ASSISTANT: Sure, I am here to help you. Can you please share your source point?

USER: Sure, my source point is New York EWR.

ASSISTANT: Could you please provide me your planned journey dates?

USER: Sure, my journey dates are 01/22 and 01/24.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no flight found on your journey routes.

USER: Ok, no worries at all. Thank you for your assistance.

ASSISTANT: Thank you for availing us.