You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: I would like to attend a cultural event at New York, can you help me to book a flight ticket from BOS to EWR?

ASSISTANT: Please provide your travelling dates.

USER: My travelling dates are 04 and 06 of Mar.

ASSISTANT: Do you need any connection limit?

USER:  I am willing to travel in a single connecting flight.

ASSISTANT: Do you have any other specifications?

USER: I would like to depart in the evening with economy class.

ASSISTANT: May I know your name?

USER: I am Katherine Adams.

ASSISTANT: There are no flights available on your routes.

USER: Oh! that very sad to hear, thank you.

ASSISTANT: Thank you for opting us.