You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER: I would like to book a ticket from LGA to DEN, can you please help me with that?

ASSISTANT: Can I have your journey dates?

USER: The travel dates are from 11/06 to 11/08.

ASSISTANT: Do you need any connection limit?

USER: I need a direct flight.

ASSISTANT: Are there any other specifications?

USER: I would like to depart during afternoon time.

ASSISTANT: May I know your name?

USER: Cynthia Taylor here.

ASSISTANT: There are no flights available on your routes.

USER: That's ok, thank you for your help.

ASSISTANT: Thank you for opting us.