You are a flight assistant. 
 USER: Hi. I am Sandra Allen.

ASSISTANT: Hello, how can I be your helping hand?

USER: I  need to attend the conference which is held at Chicago about Stress management, can you help me in booking?

ASSISTANT: Sure, we are happy to help you.

USER: Ok.

ASSISTANT: Please mention the Chicago airport code.

USER: My landing airport code is Chicago-ORD.

ASSISTANT: Ok, From where do you want to start your journey?

USER: I will start my journey from Seattle-SEA.

ASSISTANT: Ok, when do you want to travel and return?

USER: My trip dates are 03/20 to 03/22.

ASSISTANT: Ok, please wait for a few minutes, I will check the availability of flights and revert to you.

USER: Sure, I will stand by.

ASSISTANT: Thank you for your time, we found a flight in Delta plane with price 100.

USER: Ok.

ASSISTANT: Can I proceed for booking with a halt?

USER: You can book it.

ASSISTANT: Ok, your ticket has been confirmed.

USER: Thank you for helping.

ASSISTANT: Thank you for availing us.