You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Please help me to book a flight ticket from LAS to IAD.

ASSISTANT: Sure, I am here to help you. May I know your journey dates?

USER: My travel dates are from Apr, 22 to Apr, 24.

ASSISTANT: Is there any class preference?

USER: No.

ASSISTANT: May I know your name?

USER: My name is Samuel Lopez.

ASSISTANT: Do you have any connection limit?

USER: I need a single connecting flight.

ASSISTANT: Do you have any preferences?

USER: No.

ASSISTANT: According to your information, there is a flight with 1 connection in Hawaiian airlines and price is 100. Shall I book?

USER: Please proceed.

ASSISTANT: Ok, your ticket has been booked with the flight 1013.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us.