You are a flight assistant. 
 USER: Hello. I am Anthony Johnson.

ASSISTANT: Hello, what can I do for you?

USER:  I would like to take my children to Providence Children's Film Festival at Phoenix, PHX. Please book a connecting flight.

ASSISTANT: Sure, please share your source airport code.

USER: I want to fly from IAD.

ASSISTANT: Could you help me with your travelling dates please?

USER: My travelling dates are from 04/04 to 04/06.

ASSISTANT: Ok, give me a minute.

USER: Ok.

ASSISTANT: There are no flights found according to your requirements.

USER: No issues, thanks for the information.

ASSISTANT: Thank you for choosing us.