You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Mark Davis.

ASSISTANT: How can I help you Mark Davis?

USER: I want to visit Austin with my client on the part of our project, please help me in ticket booking.

ASSISTANT: Sure, can you please tell me your airport codes?

USER: Sure, OAK and AUS are my airport codes.

ASSISTANT: May I know your travelling dates please?

USER: I am planning to travel on 08/10 and 08/12.

ASSISTANT: Wait a moment please.

USER: Sure.

ASSISTANT: Flight-1008 of Hawaiian airlines of price 100 available for you. Shall I proceed?

USER: Yes, please.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your service.

ASSISTANT: Thank you and have a safe journey.