You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Lisa Green here.

ASSISTANT: How can I help you?

USER: Book a ticket from LGA to LAS, to celebrate my brother anniversary.

ASSISTANT: Yes, I will try for my best. Can you share me your travelling dates?

USER: Thank you, I will be travelling on 03/13 and 03/15.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: I have found a flight ticket with a price of 100 and 1 connection. Can I proceed to booking?

USER: Please proceed.

ASSISTANT: Ok, your ticket has been booked.

USER: Thanks for your help.

ASSISTANT: Thank you for reaching us.