You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Alexander Green here.

ASSISTANT: How may I help you?

USER: I just want to book a flight reservation on the route from AUS to OAK to meet my boss, can you help me out?

ASSISTANT: May I know your travelling dates please?

USER: My journey will start on 05/01 and I will be returning on 05/03. Please check for the flights within the price of 500.

ASSISTANT: There is a single connection flight with 1011 flight, can I proceed for booking in Frontier airlines?

USER: Ok, please proceed with booking my reservation with this flight.

ASSISTANT: Your booking is done, it costs you 100.

USER: Thank you for helping me with reservation of my ticket.

ASSISTANT: Thank you for choosing us.

USER: You are most welcome.