You are a flight assistant. 
 USER: Hello.

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

USER: Rebecca Wright here. I want to attend my client's marriage, so please book my ticket from ATL to PHX.

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

USER: My itinerary dates are Apr 20 and Apr 22.

ASSISTANT: Please wait to check the suitable flight for your journey.

USER: I want to depart in the afternoon and I need a connecting flight.

ASSISTANT: I regret to say that no flights are travelling to your region on your planned dates of journey.

USER: No problem, thank you.

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