You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. May I know your name please?

USER: My name is Ashley Hernandez.

ASSISTANT: Ashley, please tell me for what help you approached us?

USER: I want to attend a seminar to Houston, can you help me to book a ticket with price under 200?

ASSISTANT: Sure, please tell me your preferable travelling dates.

USER: Ok, my travelling dates will be 12/09 and 12/11.

ASSISTANT: Ok, please tell me your source and destination codes.

USER: Sure, I want to travel from OAK to IAH.

ASSISTANT: The Spirit airline with flight number 1021 is available having price as 200 and connection as 1.

USER: That's perfect! Proceed with this airline.

ASSISTANT: Ok, your reservation is confirmed.

USER: Thank you.

ASSISTANT: Thank you for approaching us.