You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I support you?

USER: I am an anchor, I am planning to organise an event at Dallas, help me in booking my flight ticket within the price limit of 200.

ASSISTANT: Sure, please mention your journey airport codes.

USER: My airport codes are from WA-SEA to TX-DFW.

ASSISTANT: Ok, please share your journey dates.

USER: My travelling days will be from 10/12 to 10/14.

ASSISTANT: Ok, May I know your name?

USER: I am Mary Allen.

ASSISTANT: Ok, we found an AA airline with flight number 1009 based on your details. The price is 100.

USER: Please confirm my booking.

ASSISTANT: Can I proceed for booking? Sure, your ticket has been reserved.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.