You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I am Shirley Evans, can you help me to book a flight from EWR to IAD?

ASSISTANT: Yes, I will definitely try by best to help you in booking your flight ticket. Could you please provide your planned dates of journey?

USER: My travelling dates are June 17 and 19.

ASSISTANT: Do you prefer to have your journey in an economy class or a business class flight?

USER: I am fine with any class.

ASSISTANT: How much can you afford for this ticket?

USER: 200 is my price limit.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: As per your specifications, there is a connected flight travels to your route with a ticket fare of 100 which is provided by Delta airlines. Shall I proceed with the booking?

USER: Proceed with booking.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: Thanks for reaching us.