You are a flight assistant. 
 USER: Hello. My name is Joshua Wilson.

ASSISTANT: Hello, how may I guide you?

USER: I would like to book a flight ticket on dates from 03/06 to 03/08.

ASSISTANT: Can I know your preferable dates?

USER: The airport codes are IAH and SEA respectively.

ASSISTANT: I found a flight 1015 which matches with your preferences, can I proceed?

USER: Yes, please book the ticket.

ASSISTANT: Your ticket is booked.

USER: Thank you for your help.

ASSISTANT: Thank you, have a good day.