You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: Can you please help me to book a flight from ORD to BOS?

ASSISTANT: Sure, I am here to help you, can I know your trip dates?

USER: Sure, I want to depart on June 22 and need to return on June 24.

ASSISTANT: Do you have any connection limit?

USER: I am looking for a flight with single connection.

ASSISTANT: Is there any other specifications?

USER: No.

ASSISTANT: May I know your name please.

USER: Betty Anderson here.

ASSISTANT: Sorry, no flights are found on your travel dates.

USER: Oh! It is sad to hear. Anyway, thank you for your time.

ASSISTANT: Thank you for reaching us.