You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: Myself Rebecca Johnson from JFK. Please book a flight ticket to SEA on 01/10 and also the return ticket from SEA to JFK on 01/12 dates.

ASSISTANT: There is a flight for you from AA airline with number 1020. Price of the ticket is 400. Is it ok for you?

USER: My budget is very low, can you please check for the price 200?

ASSISTANT: Sorry Johnson, there is no flight ticket available with your budget.

USER: It's ok. Thank you for the information.

ASSISTANT: Have a great day, Johnson. Thank you for choosing us.