You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Ashley Williams.

ASSISTANT: How may I guide you today?

USER: I have to attend a Live Concert at Las Vegas, could you please help me with booking a flight ticket from ORD to LAS?

ASSISTANT: Sure, I will help you with that. Can you please share your journey dates?

USER: I would like to depart on July 28th and return on July 30th.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight.

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

USER: Ok, not an issue. Anyways, thank you for the information.

ASSISTANT: Thank you for reaching us.