You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Patrick Turner. Can you please book a ticket from IAD to PHX ?

ASSISTANT: Sure, can you please share your travel dates?

USER: My travelling dates are Aug 13 to Aug 15.

ASSISTANT: Do you have any class preference?

USER: I am comfortable with any class.

ASSISTANT: Patrick Turner, there is a flight available with price 100 and the connection is 1 with AA airline. Would you like me to proceed with the booking?

USER: Do not proceed, I need a direct flight can you check it once.

ASSISTANT: I am sorry to inform you that there is no flight available at your request.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for contacting us.