You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Can you help me to book flight ticket from IAD to BOS?

ASSISTANT: Sure, please share your journey dates?

USER: My trip dates are June 8 and June 10.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight.

ASSISTANT: Is there any class preferences?

USER: I am comfortable with any class.

ASSISTANT: May I know your good name?

USER: Linda Collins here.

ASSISTANT: Sorry, no flights found on your given details.

USER: Ok, not a problem. Thank you for checking.

ASSISTANT: Thank you for choosing us.