You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am Dorothy Martinez from Washington. Can you please check the availability of flights in between the points from IAD to BOS?

ASSISTANT: Sure, may I know your travel dates please?

USER: Sure, my travelling dates are on 3 and 5 on March and I would like to depart on evening.

ASSISTANT: Do you have any other requirements?

USER: I can afford up to 200 only.

ASSISTANT: Ok, do you need any halt in between your journey?

USER: Yes, I need a stopover.

ASSISTANT: Thank you for providing your travelling details. Please be on hold, let me check with the flight availability.

USER: Sure.

ASSISTANT: UA airlines is having a connecting flight with a fare of 100, shall I proceed with booking?

USER: Sure, please go ahead for booking.

ASSISTANT: Your ticket is confirmed with the flight-1012 in economy class.

USER: Thank you.

ASSISTANT: Welcome, have a safe trip.