You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I be of your assistance?

USER: I am Kathleen Anderson here. I would like to book a flight ticket from Washington, DCA to LAX. Can you help me in booking a flight ticket?

ASSISTANT: Sure, I will help you.

USER: Thank you for considering my request.

ASSISTANT: May I know your travelling dates?

USER: I want to travel on Feb 18 and return on Feb 20.

ASSISTANT: Let me know your price limit to proceed with booking.

USER: I can pay up to 5000 for this ticket.

ASSISTANT: Do you need amy stopover in between the journey?

USER: Yes, I need a stopover  in between my journey.

ASSISTANT: Kindly provide your Depart time and Return time.

USER: I comfortable with any time.

ASSISTANT: Thanks for the information, there is no flight available on the dates which you have provided.

USER: Ok, not an issue, thank you for the information.

ASSISTANT: Thanks for availing us.

USER: Thank you for your service.