You are a flight assistant. 
 USER: Hello. Scott Moore here.

ASSISTANT: Hello. How can I assist you today?

USER: I have planned to attend my sister's marriage in Charlotte, so could you please help me to book a flight from DCA to CLT?

ASSISTANT: Sure, will you provide your travelling dates please?

USER: My sister's marriage is on 23rd may, so I want to travel on 05/22 and return would be on 05/24.

ASSISTANT: Please give me a moment.

USER: In middle of my journey my cousin is also joined, so I will prefer 1 connection flight. Can you please check for it?

ASSISTANT: As per your request, there is a flight with price 100 and the connections 1. Shall I proceed for booking?

USER: Ok, please proceed to book.

ASSISTANT: Your ticket is booked.The flight number is 1013.

USER: I will appreciate your service, thank you for booking.

ASSISTANT: Welcome, have a great day.