You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Gregory Wilson.

ASSISTANT: How can I assist you?

USER: Can you help me to book a flight from EWR to AUS?

ASSISTANT: Sure, I'll definitely help you in that. May I know your planned travel dates please?

USER: My journey dates are 01/21 and 01/23.

ASSISTANT: Ok Wilson, please wait for a while.

USER: My price limit is 500 only.

ASSISTANT: Spirit airlines is having a flight on that route with travel charge of 100, shall I proceed for booking?

USER: Proceed.

ASSISTANT: Your ticket has been booked with flight-1018, have a safe journey.

USER: Thank you for your help.

ASSISTANT: My pleasure, thank you for choosing us to help you.