You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I am Pamela Brown. I am planning to visit Museum of Nature and Science at Denver, could you please help me with booking a flight ticket from LGA to DEN?

ASSISTANT: Sure, may I know your journey dates?

USER: I would like to depart on Jan 1st and return on Jan 3rd.

ASSISTANT: Is there any class preference?

USER: I am comfortable with any class.

ASSISTANT: May I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Can you please share me your departure and arrival timings?

USER: Make sure that my return time must be afternoon.

ASSISTANT: Sure, Is there any other specifications?

USER: No.

ASSISTANT: Thank you for your patience, no flights found with your requirements.

USER: Ok, not an issue. Anyways, thank you for the information.

ASSISTANT: Thank you for reaching us.