You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you help me in booking my flight ticket from LAS to DEN?

ASSISTANT: Sure, let me know your travelling dates.

USER: My trip dates will be Nov 7th to Nov 9th.

ASSISTANT: May I know your connection limit?

USER: I prefer a connecting flight.

ASSISTANT: Do you have any other requirements?

USER: I prefer a flight that should depart in the afternoon.

ASSISTANT: May I know your name please?

USER: I am Christine Thompson.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: No problem, thank you.

ASSISTANT: Thank you for opting us.