You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER:  My name is Anthony Young. I would like to book a ticket from BOS to IAD, to attend a conference.

ASSISTANT: Sure, can I know the travel dates please?

USER: My travel dates are May 27 and May 29.

ASSISTANT: Can I know the connection limit please?

USER:  I would like to board on single connection flight.

ASSISTANT: Do you have any requirements?

USER: Yes, I would like to board on a flight which departs in the afternoon.

ASSISTANT: Ok, wait a moment please.

USER: Sure, take your time.

ASSISTANT: Sorry, there are no flights available as per your request.

USER: No problem, Thank you for the time and information.

ASSISTANT: Thank you for approaching us.