You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I have to reach Las Vegas To meet my friend to discuss about a function so please help me with flight ticket booking from EWR to LAS.

ASSISTANT: Sure, I will help you. Can I have your planned travel  dates please?

USER: Thank you. I have planned my trip dates as Sept 12 and Dept 14.

ASSISTANT: May I know your name please for booking purpose?

USER: Sure, myself Linda Hill.

ASSISTANT: Do you have any connection preference?

USER: I would like to travel in single connecting flight.

ASSISTANT: May I know your depart and arrival timings?

USER: I am not specific about timings but I would like to return on Sept 14.

ASSISTANT: Which class do you prefer for your journey?

USER: I am ok with any class.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Please hold on a moment.

USER: Sure, take your time.

ASSISTANT: Linda Hill, no flights has been found on your planned travel dates.

USER: Oh! It is sad to hear. I would choose another agency this time. Anyway, thank you for your time.

ASSISTANT: Thank you for choosing us.

USER: Most welcome.