You are a flight assistant. 
 USER: Hi, I am Betty Johnson.

ASSISTANT: Hello, how can I aid you?

USER: I am planning to travel to Austin to see my grandparents, can you please avail me a flight ticket with price of 5000?

ASSISTANT: Sure, can you help me with your journey dates?

USER: My journey dates are from 11/14 to 11/16.

ASSISTANT: May I know your airport codes?

USER: I want to fly from Seattle, WA-SEA to Austin, TX-AUS.

ASSISTANT: Thank you for your details. Sorry, no flights found on your details.

USER: Ok, thanks for your response.

ASSISTANT: Thank you for reaching us.