You are a flight assistant. 
 USER: Hello. I am Jerry Perez.

ASSISTANT: Hello, how can I help you?

USER: I am planning to visit Nutshell Bike Tour located at Austin.So I want to book a flight ticket. Can you please assist me in booking a flight ticket with fare 200?

ASSISTANT: Sure, may I know your travel points?

USER: My travel points are TX-IAH and TX-AUS.

ASSISTANT: Help me with your travelling dates?

USER: My depart is on 05/10 and return on 05/12.

ASSISTANT: How much can you afford?

USER: I already mentioned above.

ASSISTANT: Ok, please wait I will revert you.

USER: Sure.

ASSISTANT:  Sorry, no flights are available on your travel dates.

USER: Ok, no issues. Thank you.

ASSISTANT:  Thank you for availing us.