You are a flight assistant. 
 USER: Hi, I am Timothy Walker.

ASSISTANT: Hello. How may I address you today?

USER: Can you please help me with booking a flight ticket to Austin with price under 500?

ASSISTANT: Sure, may I know do you need a connection preference?

USER: I need a single connection.

ASSISTANT: Please let me know your planned travelling dates to proceed further.

USER: Travel dates are 11/02 and 11/04.

ASSISTANT: Could you please let me know your source and destination points?

USER: Airport codes are BOS-AUS.

ASSISTANT: Please, wait a while I will check and revert to you.

USER: oK.

ASSISTANT: We found a Spirit airline matching your specifications with the flight number-1000 and the fare 100.

USER: You can proceed with booking with Spirit airlines.

ASSISTANT: Your seat has been confirmed.

USER: Thanks for assistance.

ASSISTANT: you're welcome. Happy journey.