You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Brenda Anderson here. I want to expand my casino business in Washington DC, so please book my ticket from LAS to IAD.

ASSISTANT: Sure, could you please share me with your dates of journey?

USER: My itinerary dates are 12/09 and 12/11.

ASSISTANT: Please wait for a mean while.

USER: Sure.

ASSISTANT: There is a ticket with the connecting flight of fare 100, are you ok?

USER: Ok, book my ticket.

ASSISTANT: Your ticket has been reserved with the Frontier airline.

USER: Thank you for your service.

ASSISTANT: You are welcome.