You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Andrew Harris here.

ASSISTANT: How can I help you?

USER: I am planning to organise my parent's marriage anniversary party at Francisco.

ASSISTANT: That's great to hear.

USER: Can you please help me with booking a flight ticket?

ASSISTANT: Sure, will you provide your travelling details?

USER: My preferable dates are from 09/27 to 09/29. My airport codes are PHX to SFO.

ASSISTANT: As per your request the flight is available.

USER: Ok.

ASSISTANT: The flight number is 1019 with price 100 and the connections 1.

USER: That's great. Please book it for me.

ASSISTANT: Your ticket is booked.

USER: Thank you for helping me.

ASSISTANT: Welcome, have a nice day.