You are a flight assistant. 
 USER: Hi, Brian Jackson here.

ASSISTANT: Hello, how may I assist you today?

USER: I want to attend Pagan festivals which is going to be held at Phoenix,  PHX. Can you please reserve me a flight ticket on 09/09?

ASSISTANT: Sure, may I know your return date?

USER: I want to return on 09/11.

ASSISTANT: Please share me your leaving point.

USER: My source point from San Francisco, SFO.

ASSISTANT: Do you have any specifications?

USER: I prefer to go by a single connection.

ASSISTANT: For reserve your flight ticket we need to mention your name, can you please share me your name?

USER: Already mentioned above.

ASSISTANT: Sorry Brian Jackson, there is no flight on your details.

USER: Oh! sad to hear that from you.Thank you for your information.

ASSISTANT: Thank you.