You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you today?

USER: I need to travel from SFO to BOS, can you help me with that?

ASSISTANT: Can you please share your travel dates?

USER: My trip dates are 02/23 ans 02/25.

ASSISTANT: May I know your connection limit?

USER: I need a connecting flight in normal cost airlines.

ASSISTANT: Do you have any other specification that you are looking for?

USER: My depart time must be in afternoon.

ASSISTANT: May I know your name to proceed further?

USER: I am Nicole Smith.

ASSISTANT: I am sorry to inform you that there is no flight available at your request.

USER: That's ok. Thank you for your service.

ASSISTANT: Thank you for contacting us.