You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: Carol Hall here. Can you book a ticket from SFO to IAH?

ASSISTANT: On which dates you are planning to travel?

USER: Ok, here are my preferred travel dates 06/23 and 06/25.

ASSISTANT: I found a flight 1017 of Southwest airline matches with your preferences, can I proceed?

USER: Please proceed.

ASSISTANT: Your ticket is booked.

USER: Thank you for the help.

ASSISTANT: Welcome.