You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,. How may I help you?

USER: I want to meet my childhood friend after long time at Philadelphia, PHL.So, can you reserve a flight ticket?

ASSISTANT: Sure. Please provide your travel dates?

USER: My preferable dates of journey is 10/24 to 10/26.

ASSISTANT: Please let me know boarding airport code?

USER: I want to board from Denver, DEN.

ASSISTANT: Flight number 1006 is available with price 200. Airline is Frontier having connections 1.

USER: You can book.

ASSISTANT: May I know your name to book ticket?

USER: I am Patricia Wright.

ASSISTANT: Your ticket is booked.

USER: Thank you for assisting me.

ASSISTANT: Thanks.