You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: Matthew Campbell here. Can you please help me in booking a flight ticket from LAS to IAH?

ASSISTANT: Sure, can you share your journey dates?

USER: Sure, my travel dates are from June 27 to June 29.

ASSISTANT: Do you have any preferences?

USER: No.

ASSISTANT: There is a connecting flight with number 1022 in airline Spirit, the fare is 100 in economy class. Can I book it?

USER: Ok, please book it.

ASSISTANT: Your ticket is reserved.

USER: Thank you for booking.

ASSISTANT: Thank you for opting us.