You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: Myself William Smith. I have a client meeting at Los Angeles to meet my colleagues. Can you please help me in reserving the ticket from LAS to LAX?

ASSISTANT: Sure, I will help you with that. Can you please share your preferable journey dates?

USER: I am planning my trip on May 3, and again I will return back on May 5.

ASSISTANT: Do you have any class preference?

USER: I am comfort with any class.

ASSISTANT: Is there any connection limit?

USER: I am flexible with single connection.

ASSISTANT: Do you have any other specifications?

USER: My return time is evening, and my airline preference is normal-cost.

ASSISTANT: I am sorry to say that there is no flight found under your details.

USER: Not a big issue, anyhow thank you very much for your service.

ASSISTANT: Thank you for reaching us, have a great day.