You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Jessica Campbell here.

ASSISTANT: How can I  help you?

USER: I would like to book a ticket from BOS to DCA, can you please help me with that?

ASSISTANT: Your travelling dates please?

USER: The travel dates are from 04/18 to 04/20.

ASSISTANT: There is a flight with single connection, can I proceed for booking in 1021 flight?

USER: Please proceed with that.

ASSISTANT: Your booking is done in Delta airlines and economy class.

USER: Thank you.

ASSISTANT: Thank you for choosing us.