You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: This is James Gonzalez.

ASSISTANT: James Gonzalez, how may I assist you today?

USER: I want to travel from EWR to BOS, can you please help me to book a flight ticket?

ASSISTANT: Sure, I will help you. Please help me with your planned travel dates.

USER: I want to travel in the month of Aug from 1st to 3rd.

ASSISTANT: Please help me with your preferred travel time.

USER: I want to return in the afternoon.

ASSISTANT: Do you need a direct or connecting flight?

USER: I want a single connecting flight.

ASSISTANT: Please let me know with your class preference.

USER: I am comfortable with any class.

ASSISTANT: Do you have any other preferences in your journey?

USER: No.

ASSISTANT: James Gonzalez, I am really sorry to inform you that there is no flight operated in your preferred route.

USER: Ok, no issues. Thank you for your information.

ASSISTANT: Thank you for understanding. Thank you for reaching us. Have a great time.