You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Helen Roberts. I need to attend music concert at California, could you please book a ticket from IAH to LAS?

ASSISTANT: Yes, can you share me your dates of travel?

USER: Sure, my journey dates are 05/26 and 05/28.

ASSISTANT: Give me a moment.

USER: Ok, I will wait.

ASSISTANT: I have found a flight ticket with a price of 100 and 1 connection.

USER: Ok, please proceed.

ASSISTANT: Ok, your ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you for contacting us.