You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you for today?

USER: I want to book a ticket from LGA to ORD to meet my childhood friend.

ASSISTANT: I am here to help you about that. Can you please let me know your planned dates of journey?

USER: My travelling dates are July 13 and July 15.

ASSISTANT: Do you need a connecting flight for your journey?

USER: I want a direct flight.

ASSISTANT: Please provide your name for booking purpose.

USER: Sure, I am Amy Clark.

ASSISTANT: Do you have any other specification for your journey?

USER: My return time is morning.

ASSISTANT: Sorry to say this Amy Clark, there are no flights to your region due to heavy bookings.

USER: Ok, no issues. Thank you.

ASSISTANT: You are welcome, thank you for reaching us.