You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am Jonathan Smith.

ASSISTANT: Glad to meet you Jonathan Smith.

USER: I want to visit Angel Island in Oakland, can you please book a flight ticket from Phoenix?

ASSISTANT: Sure, can I have your airport codes?

USER: Sure, My source is from PHX and destination OAK.

ASSISTANT: Fine, provide your trip dates too.

USER: Trip dates are 04/11 and 04/13.

ASSISTANT: As per the details, there is no flight for you on your route.

USER: Ok, not a problem. Thank you for informing.

ASSISTANT: Thank you for choosing us.