You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I need a connecting flight for my journey to Chicago in May month. Can you please help me in booking a flight ticket from Boston?

ASSISTANT: Sure, may I know your name?

USER: Sure, my name is Katherine Thompson.

ASSISTANT: May I know your travel dates?

USER: Sure, my travel dates are May 12 and May 14.

ASSISTANT: Do you have any specifications?

USER: Yes, I need to start my journey from my location in the afternoon.

ASSISTANT: When do you like to travel?

USER: I would like to travel from May 12 to May 14.

ASSISTANT: Please wait a moment.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry, there is no flight at this moment.

USER: Not a problem, I will go by road trip to complete my trip. Anyways thank you for the information.

ASSISTANT: Thank you.