You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I abet you today?

USER: I am Christopher Carter. Can you aid me in booking a flight ticket from New York to Chicago?

ASSISTANT: Sure, please share your travelling dates?

USER: 06/08 and 06/10 are my travelling dates.

ASSISTANT: May I know your source and destination points?

USER: LGA is my origin and ORD is my destination.

ASSISTANT: Thank you for your information. There are no flight found with the specified dates.

USER: Ok, no issues. Thanks for your service.

ASSISTANT: Thank you for availing with us.