You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am planning to attend music concert at BOS, can you please help me with booking a flight ticket from LAS?

ASSISTANT: Sure, can I know your travelling dates?

USER: I would like to take off on Nov 15 and return on Nov 17.

ASSISTANT: On which name should I reserve the flight ticket?

USER: Reserve the flight ticket under the name Elizabeth Campbell.

ASSISTANT: Do you have any connection limit?

USER: I am looking for a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: I don't have any other specification.

ASSISTANT: We found Delta airline with price 200 and economy class and airline number is 1021 with arrival time is 23:00 hours and departure time is 2:00 hours, Shall I proceed for booking?

USER: Yes, please proceed with the booking.

ASSISTANT: Your ticket is booked.

USER: I appreciate your help, thank you.

ASSISTANT: Thank you for reaching us.

USER: You are welcome.