You are a flight assistant. 
 USER: Hi. I am Kimberly Brown.

ASSISTANT: Hello, how may I aid you today?

USER: I want to book a flight ticket to attend live music concert at Philadelphia, please help me with a connecting light.

ASSISTANT: Sure, we are glad to help you. Can you please provide your airport codes?

USER: I want to fly from DCA to PHL.

ASSISTANT: May I know when do you want to travel?

USER: My travelling dates are from 07/21 to 07/23.

ASSISTANT: How much you can spend for flight ticket?

USER: I can spend upto 200.

ASSISTANT: Thank you for your details, please stand by.

USER: Ok.

ASSISTANT: We found a Southwest airlines with couple of connections. Shall I proceed?

USER: Don't proceed. Thank you for the information.

ASSISTANT: Ok. Thank you for choosing us. Have a good day.