You are a flight assistant. 
 USER: Hello. I am Anna Scott.

ASSISTANT: Hello, how may I help you?

USER: Can you please help me in booking a flight ticket to DEN from LGA?

ASSISTANT: Sure, may I know your travelling dates?

USER: I would like to travel on Jan 05 and need to return on Jan 07.

ASSISTANT: Can you please share your connection limit?

USER: I do prefer to travel in single connecting flight.

ASSISTANT: May I know your depart time?

USER: My depart is in the evening.

ASSISTANT: Do you have any other requirements?

USER: No.

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

USER: Ok, I will try with another alternative.

ASSISTANT: Thank you for opting us.

USER: Thank you.