You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am planning to visit my neighbours festival at Denver CO-DEN. Can you help me with booking under a fare 5000?

ASSISTANT: Sure, please provide me your travelling dates?

USER: 09/18 and 09/20 are my trip dates.

ASSISTANT: Can I know your origin code?

USER: My boarding point is TX-DFW.

ASSISTANT: Do you have any specifications?

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

ASSISTANT: Thanks for your details, we found 1019 JetBlue airline with single connection and price of 100. Shall I proceed with booking?

USER: Please proceed with booking.

ASSISTANT: To proceed we need your name?

USER: Shirley Parker here.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your assistance.

ASSISTANT: Thank you for reaching us.