You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Gary Hill here.

ASSISTANT: How may I guide you today?

USER: I want to reserve my ticket from DCA to BOS, can you please help me in this?

ASSISTANT: I am here to help you. May I know your preferable dates please.

USER: Sure, my planned dates of journey are from 06/03 to 06/05.

ASSISTANT: Just give a moment.

USER: Sure, take it.

ASSISTANT: There is a flight with one connection limit having airfare is 100 and airline is Delta. Can I proceed with booking?

USER: Ok, please go ahead with this ticket booking.

ASSISTANT: Your ticket has been booked with the flight number 1021.

USER: Thank you for your help in booking my ticket.

ASSISTANT: Thank you for reaching us.