You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: I am planning to visit my cousin's home at Chicago so, can you help me with booking from Las Vegas?

ASSISTANT: Sure, can you please mention your preferable journey dates to proceed further?

USER: I have planned to travel on dates 21 and 23 Sept.

ASSISTANT: May I know your name please?

USER:   My name is James White.

ASSISTANT: Do you have any connection limit?

USER: I prefer to travel with a break in between the journey.

ASSISTANT: Is there any airline preference?

USER: No.

ASSISTANT: Do you have any class preference?

USER: No, I don't have class preference.

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

USER: Ok, no issues. Thank you for the response.

ASSISTANT: Thank you for reaching us.