You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I want to book a flight from HOU to AUS.

ASSISTANT: Fine, may I know your preferable dates to do journey?

USER: My travelling dates are from 05/09 to 05/11.

ASSISTANT: May I know your good name please?

USER: My name is Karen Harris.

ASSISTANT: Frontier airlines is having a flight with travel charge of 100, shall I proceed booking?

USER: Ok, book it.

ASSISTANT: Your ticket has been booked with flight-1009, have a safe journey.

USER: Thank you for helping me.

ASSISTANT: Thank you for choosing us.