You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I am planning to travel from BOS to LAX, help me in booking a flight?

ASSISTANT: Can I know your travelling dates?

USER: My travelling dates are Mar 14 to 16.

ASSISTANT: Is there any connection limit?

USER: Yes, I prefer single connection flight.

ASSISTANT: Do you have any class preference?

USER: No, but I need normal - cost airlines.

ASSISTANT: Let me know your name.

USER: I am Dennis Young.

ASSISTANT: Found ticket with United airlines for price 100.

USER: Proceed for booking.

ASSISTANT: Ticket is booked having flight number 1020.

USER: Thank you.

ASSISTANT: Thank you.