You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I am Anna Gonzalez. I like to travel from LAS to BOS.

ASSISTANT: Sure, I will help you with that. Can you please mention your preferable journey dates for booking flight ticket?

USER: My date of travelling is in 02//18 to 02/20.

ASSISTANT: Ok, just give me a moment, I will check flight availability.

USER: Sure.

ASSISTANT: There is a flight available as per your requested dates, airline is UA and flight number is 1010. Shall I proceed?

USER: Proceed for booking.

ASSISTANT: Your flight ticket is booked successfully.

USER: Thank you for helping me in booking a flight.

ASSISTANT: Thank you for contacting us, have a good day.