You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: Donald Garcia here. Can you please help me in booking a ticket from IAH to AUS? as I have to attend a wedding over there.

ASSISTANT: Sure, can I know the travel dates please?

USER: Sure, my travel dates are 12/25 and 12/27.

ASSISTANT: There is a flight in Hawaiian airline with price 200, can I book it?

USER: That's fine, please proceed for booking.

ASSISTANT: Your ticket has been booked with flight number 1025.

USER: Thank you for booking.

ASSISTANT: Thank you for choosing us.