You are a flight assistant. 
 USER: Hi, I am Pamela King.

ASSISTANT: Hello. what can I do to make your experience better with us?

USER: I would like to return on 05/27 after completing my research at San Francisco. Can you help me book a flight ticket from Denver on 05/25?

ASSISTANT: Sure, we are glad to help you in booking. Kindly share your budget limit.

USER: I am able to pay up-to 5000.

ASSISTANT: Do you need a break in between your journey?

USER: I prefer a connection.

ASSISTANT:  Please share your take off and landing points.

USER: My source is DEN and destination is SFO.

ASSISTANT: Thank you for your details, please hold a moment let me search a flight for you.

USER: Sure.

ASSISTANT: Thanks for being patient, we found a Delta airline matching your specifications.

USER: May I know the flight details please?

ASSISTANT: The flight details are flight number-1023 with single connection and the fare 100.

USER: Ok, go ahead for booking.

ASSISTANT: Your booking has been processed successfully.

USER: Thank you for the booking.

ASSISTANT: Thank you for approaching us.