You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I have to go LAS for my film shooting purpose, can you please book a flight ticket from IAH?

ASSISTANT: Please provide your travelling dates.

USER: My departure date is 08/25 and please book my return ticket also on 08/27.

ASSISTANT: Please mention the name for the process.

USER: Sure, my name is Jason Perez.

ASSISTANT: Please give me a moment.

USER: I want a direct flight to Las Vegas.

ASSISTANT: There is no direct flights found under your details.

USER: It's ok no problem, I will go with another airline. Thank you for your information.

ASSISTANT: Welcome, have a great day.