You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I know how best I can help you today?

USER: I would like to meet my relatives at Washington, please book a ticket from LAS to DCA.

ASSISTANT: When are you planning to make your journey?

USER: My journey dates are 02/18 and 02/20.

ASSISTANT: We have found a connected flight with Frontier airlines, flight number 1029 and the fare of 200.

USER: Ok, please book the ticket with the name Donna Baker.

ASSISTANT: Your booking is done.

USER: Thank you for your help.

ASSISTANT: Your welcome.