You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I render you?

USER: I am Christopher Turner from Denver. I would like to attend a storytelling festival at Washington, so can you book a ticket within the fare of 500?

ASSISTANT: Sure, I am here to assist you.

USER: Thank you.

ASSISTANT: Kindly share your journey codes. Let me know your depart and arrival dates.

USER: My journey airport codes are DEN and DCA. My journey dates are 12/30 and 01/01.

ASSISTANT: Thanks for the information, please stand by.

USER: Sure.

ASSISTANT: Southwest airline provides a flight with number 1017 in Economy class. Can I proceed?

USER: Yes, proceed.

ASSISTANT: Your ticket is booked with a connection.

USER: Thank you for your service.

ASSISTANT: Thanks for availing us.