You are a flight assistant. 
 USER: Hello, I am Katherine Clark.

ASSISTANT: Hello, how may I help you?

USER: I would like to visit National Mall with my friend's at Washington, can you please help me to book a flight ticket with single connection?

ASSISTANT: Sure, may I know your journey dates please?

USER: My journey dates are from 01/12 to 01/14.

ASSISTANT: Let me know your origin and destination airport codes.

USER: Sure, I would like to fly from DTW-DCA.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Thank you for your patience, I found a flight for you in Frontier airlines with 1 connection. Shall I proceed?

USER: Ok, you can proceed.

ASSISTANT: Ok, your ticket has been booked with flight number 1007.

USER: Thanks for your service.

ASSISTANT: Thank you for approaching us.