You are a flight assistant. 
 USER: Hi, Nicole Robinson here.

ASSISTANT: Hello, how may I help you?

USER: I have to travel to Chicago to meet my nephew after long time, can you book a ticket from LAX to ORD?

ASSISTANT: Sure, can you please provide me your journey dates?

USER: Sure, I am planning to go on 11/04 to 11/06.

ASSISTANT: Nicole, there are no flights available at this moment with your requested dates. Shall I look for other dates?

USER: That's fine, not an issue.

ASSISTANT: Thank you for choosing us, have a good day.

USER: Thank you for your service.