You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: Can you help me with the flight ticket booking from IAD to BOS?

ASSISTANT: Sure, please share your planned trip dates?

USER: Ok, please book for the dates Apr 11 and 13th respectively.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need a connecting flight.

ASSISTANT: Let me know your class preference?

USER: No, I did not planned for any specific class.

ASSISTANT: Any other requirements to be met?

USER: No.

ASSISTANT: May I know your name?

USER: My name is Williams Hill.

ASSISTANT: Ok, we found connecting flight 1020 in American Airlines with fare of 100.

USER: Ok, please book.

ASSISTANT: Shall I proceed with economy class?

USER: That is great please book.

ASSISTANT: Ok, your flight ticket has been booked.

USER: Thank you of assisting me.

ASSISTANT: Thank you for reaching us.