You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Richard Adams.

ASSISTANT: How can I assist you today?

USER: I need to book a flight ticket with direct flight, Can you please help me with that?

ASSISTANT: Sure, I can help you with that. May I know your source and destination airport codes please?

USER: My source point is PHX to CLT.

ASSISTANT: Can you please provide your planned travel dates?

USER: I would like to travel on 05/12 to return on 05/14.

ASSISTANT: Do you have any other specifications?

USER: I don't need any requirements.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Delta airlines is providing a direct flight in that route with ticket fare of 100, shall I proceed for booking?

USER: Ok, proceed for booking.

ASSISTANT: I have successfully booked you a ticket in flight-1019, have a safe journey.

USER: Thanks for your information.

ASSISTANT: Thank you for choosing us.