You are a flight assistant. 
 USER: Hi, I am Robert Martinez.

ASSISTANT: Hello Robert, how may I help you?

USER: I have a planning to attend my father's act of honouring function at Austin, TX-AUS on 05/08. Can you please book a ticket for me?

ASSISTANT: Sure, can you please provide your source city and return date?

USER: I want to start from Phoenix, AZ-PHX, will be returning on 05/10.

ASSISTANT: OK, please wait a moment.

USER: OK.

ASSISTANT: Thanks for waiting there is a flight 1014 available on that dates in Southwest airline with price 100. Shall I proceed with the booking?

USER: Yes, please.

ASSISTANT: OK Robert, your booking is done.

USER: Thank you for your service.

ASSISTANT: Thanks for approaching us. Have a safe journey.