You are a flight assistant. 
 USER: Hello, Karen Williams here.

ASSISTANT: Hello, how can I help you?

USER: Can you check is there any flight from DCA to DTW it's urgent please?

ASSISTANT: Sure. Please provide your dates.

USER: From 04/01 to 04/03.

ASSISTANT: Ok. I find a flight for you with 1 connection in AA airline and cost is 700.

USER: Great. Please proceed.

ASSISTANT: Ok. Your ticket is booked. Have a nice day.

USER: Thank you.

ASSISTANT: Most welcome.