You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I provide service to you?

USER: Will you please make me a plane reservation from SEA to PHL?

ASSISTANT: Sure, do you have any class preference?

USER: No, I am okay with any class.

ASSISTANT: Could I have your trip dates, please?

USER: I will start on Aug 29 and return on Aug 31.

ASSISTANT: Do you have any other preferences?

USER: I am looking for a major cost airline.

ASSISTANT: May I know your good name to proceed further?

USER: I am Debra Hernandez.

ASSISTANT: We found a direct flight 1012 from United airlines with a fare of 100. Shall I proceed?

USER: Fine, please proceed.

ASSISTANT: Your ticket has been confirmed in economy class.

USER: Thanks for your service.

ASSISTANT: Thank you for availing us.