You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I render you today?

USER: I am Donald Lee.

ASSISTANT: Ok.

USER: I need to fly Houston, could you please help me in booking from SEA to IAH?

ASSISTANT: Do you prefer any halt in between your journey?

USER: I need a halt in my journey.

ASSISTANT: May I know when you have planned to travel?

USER: My journey is from 11/21 to 11/23.

ASSISTANT:  Ok, please wait a moment, let me search a flight for you.

USER: Ok.

ASSISTANT:  Thanks for your precious time. We found a Southwest airline fare of 200. Shall I proceed for booking with single stopover flight?

USER: Ok, proceed.

ASSISTANT: Your ticket has been confirmed with airline number 1028.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.