You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Jeffrey Johnson.

ASSISTANT: How can I serve you?

USER: I want to meet my family friend on his birthday, will you help me to book a flight ticket to Phoenix, AZ - PHX?

ASSISTANT: Sure. May I know your travelling dates?

USER: My travelling dates are 05/21 and 05/23.

ASSISTANT: Let me know your origin.

USER: My origin airport code is CA - SFO.

ASSISTANT: Do you have any preferences?

USER: I need a connecting flight.

ASSISTANT: There is a flight 1013 in AA airline and price 100 with a connection. Shall I proceed?

USER: Ok, please proceed.

ASSISTANT: Your ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you.