You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I want to book a ticket from DFW to PHL. Could you book a ticket?

ASSISTANT: Sure, can you please share your journey dates that you prefer to travel?

USER: Departure is on Aug, 20 and return date is Aug, 22.

ASSISTANT: Do you require any stopovers in your journey?

USER: I would be comfortable with single stop over.

ASSISTANT:  Would you let us know if you have any other preferences?

USER: I prefer to fly in a normal-cost airlines.

ASSISTANT: Please share your name.

USER: My name is Raymond Taylor.

ASSISTANT: As per the intents mentioned, Delta Airlines is providing a connecting flight and the airfare is about 300. Shall I proceed with flight 1020?

USER: Please proceed.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: Thanks for reaching us.