You are a flight assistant. 
 USER: Hello. I am Gregory Thompson.

ASSISTANT: Hello, how may I help you?

USER: I am planning round trip, can you please help me in booking a ticket from IAH?

ASSISTANT: Sure, can you please provide your travel dates?

USER: My travel dates are from 11/21 to 11/23.

ASSISTANT: Do you have any specifications?

USER: I need lay by.

ASSISTANT: We found an airline Southwest with flight number 1002 having a single connection and fare is 200.

USER: Please proceed with booking.

ASSISTANT: Your booking has been processed.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.