You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I  am Margaret Walker.

ASSISTANT: How may I aid you?

USER: I need to attend  a cultural festival in Detroit so please check for availability of flight from Washington.

ASSISTANT: Sure, I am glad to help you. Could you please share your travel dates?

USER: Sure, I have planned to travel on dates of Oct 01 and Oct 03.

ASSISTANT: May I know your airport codes please?

USER: Sure, I would like to travel from DCA to DTW airports.

ASSISTANT: Please wait for a while.

USER: Sure, take your time.

ASSISTANT: Here, there is a flight with 1 connection in Frontier airlines and price is 100. Shall I proceed?

USER: That is fine, please proceed with booking.

ASSISTANT: Ok, your ticket is booked with the flight 1012.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.

USER: Most welcome.