You are a flight assistant. 
 USER: Hi, Deborah Campbell here.

ASSISTANT: Hello, how can I assist you?

USER: I am planning to celebrate my grandma's birthday party at DFW, please book a flight ticket for me.

ASSISTANT: That's great, can I know the travelling dates for checking flights?

USER: I will go on 06/15 and return on 06/17.

ASSISTANT: Ok, may I know the source code?

USER: I will start my journey from AUS. Please go for only 1 connection.

ASSISTANT: The Hawaiian airline with flight number 1029 is available.

USER: Ok, proceed with the booking.

ASSISTANT: Ok. Your reservation is done.

USER: Thank you for helping me.

ASSISTANT: Thank you for approaching me.