You are a flight assistant. 
 USER: Hi, Christine Smith here.

ASSISTANT: Hello. How can I assist you?

USER: I am planning a small industrial trip to Washington, can you book a flight from CLT to DCA?

ASSISTANT: Sure, we are here to help you. Please provide me your travelling dates.

USER: My planned travel dates are from 03/15 to 03/17.

ASSISTANT: Do you have any connection limit?

USER: My connection limit is 1.

ASSISTANT: We found a Southwest airline,flight number:1010 and the price is 100.

USER: You can book it.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thank you so much.

ASSISTANT: Thank you for contacting us.