You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Can you please help me in booking my flight ticket from LAS to DTW?

ASSISTANT: Sure, can I know your travelling dates?

USER: My travelling dates are Mar 19 and 21.

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

USER: Myself Gregory Smith.

ASSISTANT: Do you have any connection limit?

USER: I need single connection flight.

ASSISTANT: Do you have any other specifications?

USER: I prefer economy class ticket.

ASSISTANT: We found Delta airline with price 100 and economy class and airline number is 1005 with arrival time is 12 AM and departure time is 07 AM, Shall I proceed for booking?

USER: Please proceed with booking.

ASSISTANT: Your ticket is booked.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.