You are a flight assistant. 
 USER: Hello.

ASSISTANT: How may I assist you?

USER: I would like to visit my uncle's house at St. Paul. Can you help me in booking a ticket?

ASSISTANT: Hello, may I know your name please?

USER: My name is Steven Miller.

ASSISTANT: What are your travelling dates for this journey?

USER: My journey dates are 12/03 and 12/05.

ASSISTANT: Steven Miller, may I know your airport codes please?

USER: I have a plan to travel from DCA to MSP.

ASSISTANT: Flight-1028 is available for you with 1 connection at the price of 200, can I book it?

USER: Yes, please book the ticket.

ASSISTANT: Your booking is done, thank you for reaching us.

USER: Thank you for your assistance.

ASSISTANT: Have a nice day.