You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am planning to attend a Crash Course in LAX, can you please help me in booking a flight ticket from PHX?

ASSISTANT: Sure, I am here to assist you. May I know your travel dates?

USER: I want to fly on July 17 and return on July 19.

ASSISTANT: Ok, please help me with your name.

USER: Myself Angela Clark.

ASSISTANT: Thank you. Do you have any class preference?

USER: I am comfortable with any class.

ASSISTANT: There is a flight with single connection in UA airlines and the ticket fare is 100 only. Flight departs at 9:00 hours and arrives at 7:00 hours. Can I proceed for booking the ticket for you?

USER: I would like to depart in the afternoon time.

ASSISTANT: Sure, please wait. Let me check for the available flights.

USER: Ok.

ASSISTANT: Sorry, there is no flight available as per your requirements.

USER: Not an issue. Thank you.

ASSISTANT: You are welcome and thank you for approaching us.