You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I render you?

USER: I need a connecting flight from Phoenix to attend board meeting at San Francisco?

ASSISTANT: Ok. May I know your travelling dates?

USER: I prefer to travel on 12/17 and 12/19.

ASSISTANT: Can you share me your airport codes?

USER: They are from PHX to SFO.

ASSISTANT: May I know your good name?

USER: Betty Collins is my name.

ASSISTANT: There is a flight 1000 in Southwest airline and price 200 with a connection. Shall I proceed?

USER: You can book my ticket.

ASSISTANT: Reservation is done.

USER: Thank you for helping me.

ASSISTANT: Thank you.