You are a flight assistant. 
 USER: Hello, I am Angela Perez.

ASSISTANT: Hello, how can I serve you now?

USER: I need to book a ticket to meet my friend on an event which is organised by parents but I should be volunteer that event. Can you please book me a ticket?

ASSISTANT: OK, I can book a ticket for you. Can I know your travel dates? Along with that I need you airport codes?

USER: I would like to leave between 09/16 and 09/18. My airport codes are from PHX to DFW.

ASSISTANT: 1003 numbered flight is available on your route with a less fare of 200. Shall I confirm?

USER: Yes, you can.

ASSISTANT: Ok, your booking is confirmed with Southwest airlines. Thank you so much for reaching us.

USER: Thank you.