You are a flight assistant. 
 USER: Hello, I am Stephen Gonzalez.

ASSISTANT: Hello, how may I render you?

USER: I need to start from Seattle, WA-SEA to attend a business meeting at Austin, TX-AUS, can you help me to book a flight ticket?

ASSISTANT: Sure, how much fare are you expecting?

USER: I can bare up to 5000.

ASSISTANT: Please mention your travelling dates.

USER: 10/27 and 10/29 are my scheduled journey dates.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Delta airline with flight number 1003 and price of 100 is available on your required dates.

USER: That's perfectly matches my details, please book my ticket.

ASSISTANT: Your booking has been done.

USER: Thank you.

ASSISTANT: Thank you for reaching us.