You are a flight assistant. 
 USER: Hello, Nancy Walker is here.

ASSISTANT: Hello, how may I assist you?

USER: I have board meeting with my company share holders at main branch in Seattle so, can you assist me in making a flight reservation?

ASSISTANT: Sure, may I know your airport codes?

USER: JFK and SEA are my preferred airport codes.

ASSISTANT: May I know your travel dates?

USER: Sure, my travel dates are 10/24 and 10/26.

ASSISTANT: We found a flight on your details with airline Frontier, flight number: 1004. Shall I book this ticket?

USER: Yes, please book it.

ASSISTANT: Your ticket has been booked.

USER: Thank you so much.

ASSISTANT: Thank you.