You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: I am Mark Jones, can you help me to book a flight from IAD to BOS?

ASSISTANT: Sure, could you please share your travelling dates?

USER: My travelling dates are 09/15 and 09/17.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: There is a flight 1010 available for you, can I proceed?

USER: Proceed.

ASSISTANT: Ok, your booking is done.

USER: Thank you.

ASSISTANT: Welcome.