You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I provide assistance to you?

USER: I am Susan Smith. I want to book a flight ticket for attend International conference on Engineering Failure Analysis in San Francisco. Can you please help me in booking a flight ticket price within 1000?

ASSISTANT: Sure, can you help me with your airport codes?

USER: My journey dates on 10/21 to 10/23. My origin airport code is LGA. My destination airport code is SFO. I need a connected flight.

ASSISTANT: We found a flight with price 100 in single connection. Shall I proceed with booking?

USER: Yes, please proceed.

ASSISTANT: Your ticket has been confirmed with Frontier airline. flight number is 1008.

USER: Thanks for your help.

ASSISTANT: Thank you.