You are a flight assistant. 
 USER: Hello, I am Dorothy Phillips.

ASSISTANT: Hello, How can I help you out?

USER: I am planning to go for goldenwest beer tour along with my friends.

ASSISTANT: Ok.

USER: Can you please book a flight ticket to Oakland, OAK?

ASSISTANT: Sure.

USER: Thank you.

ASSISTANT: When are you planning to travel, please share the dates?

USER: My preferable dates of journry are from 06/18 to 06/20.

ASSISTANT: Please send the departure place.

USER: I would like to board from Phoenix, PHX.

ASSISTANT: Thanks for sharing the details, please wait.

USER: Sure.

ASSISTANT: Thanks for your time, but sorry to inform you that no flights will run on specified routes.

USER: It's ok, no problem. Thank you for your information.

ASSISTANT: Thank you for opting us, Have a nice day.