You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: I am Elizabeth Hernandez. Can you please help me in booking my flight ticket from BOS to ORD?

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

USER: My travelling dates are 02/27 and 02/29.

ASSISTANT: Ok, wait a moment please.

USER: Ok, sure.

ASSISTANT: There is a flight in Delta airline with price 100, can I book it?

USER: Ok, please proceed for booking.

ASSISTANT: Your ticket has been booked with flight number 1004.

USER: Ok, thank for booking.

ASSISTANT: Thank you for approaching us.