You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: Can you help me in booking flight ticket from PHX to ORD?

ASSISTANT: I am here to help you, may I know your name?

USER: Angela Thompson here.

ASSISTANT: Please share your journey dates.

USER: My trip dates are June 27 to June 29.

ASSISTANT: Do you have any other specifications?

USER: I prefer to travel in connecting flight.

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

USER: Ok, no problem. Thank you.

ASSISTANT: Thanks for choosing us, have a nice day.