You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am Richard Lopez. I want to book a ticket from DCA to JFK, can you help me?

ASSISTANT:  What is your fare estimate for this booking?

USER: My price limit is 200.

ASSISTANT: Sure, I will help you with that. Can I have your travel dates please?

USER: My travel dates are May 08 and May 10.

ASSISTANT: I found a connecting flight-1009 with price 100, is it fine for you?

USER: You can book it.

ASSISTANT: Ok, booking is done on Delta airlines.

USER: Thank you for booking.

ASSISTANT: Welcome, have a safe trip.