You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Can you help me to book a normal cost airline?

ASSISTANT: Sure, I will help you to book a flight ticket. Can you please share me your travelling dates?

USER: My preferable journey dates are Feb 28 and Mar 01.

ASSISTANT: Ok, please share me your travelling airport codes.

USER: My airport codes are SEA and PHX.

ASSISTANT: Ok, do you have any connection limit?

USER: I prefer direct flight.

ASSISTANT: Ok, do you have any other specifications?

USER: I would like to prefer business class flight ticket.

ASSISTANT: Ok, please provide me your name for documentation purpose.

USER: My name is Samuel Parker.

ASSISTANT: Sorry, no flights are available on your route.

USER: No problem, thank you for the information.

ASSISTANT: Welcome, have a nice day.