You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Anna Edwards.

ASSISTANT: How may I help you?

USER: As, I am bored with my daily schedule, I have planned to visit Brooklyn walking tour which is famous in New York, LGA. Can you help me to book a connecting flight?

ASSISTANT: Ok, can you please share your trip dates?

USER: My trip dates are Nov 20 and 22.

ASSISTANT: Ok, may I know your current location airport codes?

USER: I want to start from Denver, DEN.

ASSISTANT: Ok, please wait a minute.

USER: Sure.

ASSISTANT: Sorry, on these dates there is no flights available.

USER: Ok, thank you.

ASSISTANT: Most welcome.