You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Mark Davis.

ASSISTANT: How may I help you?

USER: I need to attend a organisational summit in Los Angeles so please let me know availability of flights from Phoenix.

ASSISTANT: Please help me with your airport codes?

USER: Sure, I have planned to travel from PHX to LAX as these airports only very much near to my locations.

ASSISTANT: May I know your travel dates?

USER: Sure, I would like to travel on dates of Apr 09 and Apr 11.

ASSISTANT: According to your information, I have found a flight with single stop over in your journey with a minimum fare of 200 with flight number 1005. Shall I proceed with this flight?

USER: That is fine, please proceed with booking.

ASSISTANT: Your booking is done.

USER: Thank you for your help.

ASSISTANT: Most welcome.