You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: Can you book a flight from Phoenix, PHX?

ASSISTANT: Sure. May I know your name?

USER: Dennis Edwards here.

ASSISTANT: Can I know your travelling dates?

USER: Travel dates are from 11/22 to 11/24.

ASSISTANT: Where would you like to land on?

USER: I would like to learn new technologies, so I am planning to join in a college in Oakland, OAK.

ASSISTANT: Do you need any break?

USER: Yes, I need a connecting flight.

ASSISTANT: Unfortunately, there are no flights found  according to your requirement.

USER: Ok, I will go with other alternative. Thank you.

ASSISTANT: Thank you for reaching us.