You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I have a conference meeting at Austin this week day. Can you please help me in reserving the ticket from LAS to AUS?

ASSISTANT: Sure, I can help you with that. May I know your travel dates please?

USER: My trip dates are Jul 5 to Jul 7.

ASSISTANT: May I know your class and airline preference please?

USER: I am ok in any class and airline.

ASSISTANT: Please let me know if you have any other specifications.

USER: I need a connecting flight.

ASSISTANT: Can I have your good name please?

USER: I am Paul Green.

ASSISTANT: No flights available with your given details.

USER: No issue, thank you.

ASSISTANT: Thank you for choosing us.