You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I am Kevin Phillips. I want to book a ticket to meet my friend in Houston, will you help me with booking ticket from LAS to IAH.

ASSISTANT: Sure, may I know your travelling dates?

USER: My travelling dates are 10/25 to 10/27.

ASSISTANT: Thank you for your information, please wait for a minute. There is a flight available for you, shall I proceed?

USER: Book it.

ASSISTANT: Your ticket has been booked, have a safe journey.

USER: Thank you for booking.

ASSISTANT: Welcome.