You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Christine Lewis. I am planning to book a ticket from EWR to CLT. Can you please help me out?

ASSISTANT: Ok, please tell me your trip dates.

USER: I would like to travel on 11/06 to 11/08.

ASSISTANT: Sorry, there is no plane on your dates. Thank you.

USER: That' s fine.