You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Myself Nicole Smith.

ASSISTANT: Smith, how can I guide you today?

USER: I am planning this weekend to meet my uncle at Chicago. Can you please help me in booking the ticket from LAX to ORD?

ASSISTANT: Ok, may I know your travel dates please?

USER: I will drop-off 07/01 and again I will be return back on 07/03.

ASSISTANT: Ok, please wait for a moment.

USER: Sure, I will wait for your response.

ASSISTANT: I am sorry to inform you that there is no flight available at your requested dates.

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

ASSISTANT: Thank you.