You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: My name is Nicole Brown, I need to book a flight ticket.

ASSISTANT: Sure, may I know your travelling details?

USER: My journey details are from TX-IAH to DC-IAD.

ASSISTANT: Can you help me out with your travelling dates?

USER: My departure date on Mar/18 to arrival date on Mar/20.

ASSISTANT: Do you have any other requirements?

USER: Yes, I need one connection with the price limit 500.

ASSISTANT: OK, Please wait a while I will get back to you.

USER: OK.

ASSISTANT: Thanks for being patient, we found a flight matching your requirement. The flight details are airline-AA flight number-1014. shall I proceed with this airline.

USER: Yes, you can.

ASSISTANT: Your booking has been confirmed.

USER: Thank you for your service.