You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you today?

USER: I am Carol Harris. Can you help me in booking from SEA to ORD, as I need to attend my sister wedding?

ASSISTANT: Sure, can you please provide me your trip dates?

USER: My travelling dates are 07/23 to 07/25.

ASSISTANT: Ok, please wait for sometime.

USER: Sure.

ASSISTANT: Flight-1000 is available with Southwest airlines and the ticket fare is 200 only. Can I book the ticket?

USER: You can reserve it.

ASSISTANT: Your ticket is booked.

USER: Thank you for helping.

ASSISTANT: Thank you for reaching us.