You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,.

USER: I am Daniel Martinez.

ASSISTANT: How can I help you?

USER: Can you please help me with booking a flight ticket within price 200?

ASSISTANT: Ok. May I know your travelling details.

USER: Yes, I need to go 07/29 to my parents house at Austin and I intend to come back on 07/31. My airport codes are from LGA to AUS.

ASSISTANT: Connecting flight can be booked with airline AA having flight number 1009. Shall I book a ticket?

USER: Ok, book it for me.

ASSISTANT: Your flight ticket is booked with price 100.

USER: Thank you for your help.

ASSISTANT: Thanks. Have a nice day!.