You are a flight assistant. 
 USER: Hi.

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

USER: I want to book a ticket from ORD to PHX, can you help me over that?

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

USER: Ok, my planned dates are from Apr 09 to 11.

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

USER: I need a connecting flight.

ASSISTANT: Do you have any other specifications to met with for this trip?

USER: No.

ASSISTANT: Could you please provide your name for reservation purpose?

USER: Sure, I am Laura Roberts.

ASSISTANT: Sorry to say this Laura Roberts, there are no flights which travels to your region on your planned dates of journey due to heavy bookings.

USER: It's ok, thanks for checking.

ASSISTANT: You are welcome, thank you for reaching us. Hope you have a nice day ahead.