You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Can you help me to book a flight ticket from ORD to LAX.

ASSISTANT: Sure, I am here to help you in booking. Can you please share your travel dates?

USER: Sure, I preferred to travel in between Aug 31 and Sept 02.

ASSISTANT: Ok, please mention your name.

USER: I am Jerry Walker.

ASSISTANT: Do you have any specification?

USER: I need a connected flight.

ASSISTANT: Sorry, no flights are available on your preferable travel dates.

USER: Ok, not an issue. Thanks for your service.

ASSISTANT: Thank you for reaching us, have a nice day.