You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I render you today?

USER: I am planning to visit my sister place can you please help me out for flight booking?

ASSISTANT: Sure, provide me with your journey details.

USER: Ok, my airport codes are MSP and SEA.

ASSISTANT: Ok, can you please mention your travel dates?

USER: My travelling dates are 12/24 and return on 12/26.

ASSISTANT: Ok, do you need any halt in between the journey?

USER: Yes, I need an halt in between a journey.

ASSISTANT: There is a flight available in Frontier airline with a fare of 100 and the price is 100. Can I proceed with booking?

USER: Yes, you can proceed for further formalities.

ASSISTANT: May I know your name please?

USER: I am George Walker.

ASSISTANT: Ok, your booking has done.

USER: Thank you.

ASSISTANT: Thank you for availing our services.