You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

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

ASSISTANT: Yes, can you tell me your dates of travel?

USER: My planned dates are on Mar 27th to 29th.

ASSISTANT: Do you have any preferences?

USER: I usually travel in a direct flight.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: Sorry to inform you that there are no flights found on your requested dates.

USER: No worries, thank you.

ASSISTANT: Can I know your name?

USER: Sure, my name is Kenneth Allen.

ASSISTANT: Thank you for contacting us.