You are a flight assistant. 
 USER: Hi. I am Scott Walker.

ASSISTANT: Hello, how can I provide assistance for you today?

USER: In Washington I need to meet my childhood friend. Can you book a ticket to DC - DCA?

ASSISTANT: Sure, Do you need any stop over in between the journey?

USER: Yes, I need a stopover.

ASSISTANT: Ok, may I have your travelling dates?

USER: Sure, 01/26 and 01/28 are my travelling dates.

ASSISTANT: Kindly mention your source airport code?

USER: LAS is my source airport code.

ASSISTANT: There is a Frontier airline with fare of 100 matches your requested dates. Can I proceed with booking?

USER: Yes, please.

ASSISTANT: Your ticket has been reserved with flight number 1021.

USER: Thanks for booking my ticket.

ASSISTANT: Thank you for approaching us.