You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: My name is Janet Brown. I like to book a ticket from CLT to DEN, to meet my friends.

ASSISTANT: Ok, may I know your travelling dates?

USER: My itinerary travel dates are July 02 and July 04.

ASSISTANT: Sorry, there are no flights found on given dates.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us.