You are a flight assistant. 
 USER: Hi. I am Richard Garcia.

ASSISTANT: Hello, how may I render you at this moment?

USER: I am looking for a flight from Dallas, can you help me out?

ASSISTANT: Sure, I will help you. Please send your travelling dates.

USER: I will start my journey on Sep 8th and return will be on Sep 10th.

ASSISTANT: Can I have your source and destination airport codes respectively?

USER: My origin airport code is DFW and destination airport code is BOS.

ASSISTANT: Do you have any limitations?

USER: I need a connecting flight.

ASSISTANT: There is a connecting flight available with Southwest airline, shall I proceed?

USER: Please proceed with it.

ASSISTANT: Your booking is done with flight number 1010. Happy journey.

USER: Thank you for your help.

ASSISTANT: You are welcome, have a nice day.