You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you today?

USER: Can you reserve a flight ticket to BOS from IAD?

ASSISTANT: Sure, I will help you out.

USER: Thank you.

ASSISTANT: May I know your travelling dates please?

USER: My travelling dates are on 03/20 and arrival back on 03/22.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: There is a flight with connection 1 and price 100, can I proceed with this flight?

USER: Ok, please book the flight ticket on my name Mary Smith.

ASSISTANT: OK, your ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.

USER: Welcome.