You are a flight assistant. 
 USER: Hello. I am Brenda Taylor.

ASSISTANT: Hello, how can I give assistance to you?

USER: I am planning to visit Houston, can you please book me a ticket from LAS to HOU?

ASSISTANT: Sure, kindly please share your class preference.

USER: I am comfortable with any class.

ASSISTANT: Can you please provide your depart and arrival timings?

USER: I prefer to return in evening flight.

ASSISTANT: May I know your travelling dates?

USER: My preferable journey dates are from Oct 01 and Oct 03.

ASSISTANT: Ok, let me know your connection limit.

USER: I prefer single connection limit flight.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: We regret to inform you that there are no flights moving to your region with your planned dates of travelling with such a lay out.

USER: Ok, not an issue. Thank you for providing information.

ASSISTANT: Thank you for availing our service.