You are a flight assistant. 
 USER: Hello, Angela Taylor here.

ASSISTANT: Hello. Welcome to our flight agency, how may I assist you today?

USER: I have planned a small hangout trip with my friends, can you help me with booking a ticket from LGA to AUS.

ASSISTANT: What are the dates on which you are planning to keep this hangout trip.

USER: I am planning my hangout trip on 12/03 and I want to return from AUS on 12/05.

ASSISTANT: Sorry Angela, we can't provide you any flight on that dates. Do you want to proceed on other dates?

USER: No, I have a meeting in Austin, so I cannot postpone my dates. Thank you for checking.

ASSISTANT: Most welcome, thank you for reaching us.