You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you today?

USER: I am Kevin Thompson. Can you please help me in booking my flight ticket from HOU to PHX?

ASSISTANT: When you are planning to depart and arrive?

USER: My travelling dates are Feb 25 and Feb 27.

ASSISTANT: Please provide your specifications.

USER: I need business class seat.

ASSISTANT: There is a flight found with an airline Frontier of flight 1019 and price is 400 in business class. Can I proceed?

USER: Ok, please proceed.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you.