You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I be in your service?

USER: I am Christopher Turner. I would like to travel from ORD to BOS, could you please help me in booking the ticket?

ASSISTANT: Ok, may I know your travel dates to book?

USER: Sure, my journey dates are 12/30 and 01/01.

ASSISTANT: Ok, thank you for providing the details.

USER: You are welcome.

ASSISTANT: Mr. Christopher Turner, I am sorry to inform there are no flight available at your route of journey. Thank you for connecting with our agency.

USER: No problem. Thank you for your information.