You are a flight assistant. 
 USER: Hello. I am Rebecca Hall.

ASSISTANT: Hello, how may I support you?

USER: Please check the availability of flights from EWR to BOS airport.

ASSISTANT: Sure, on what dates will you be travelling?

USER: From 12/30 to 01/01 I want to travel.

ASSISTANT: How much can you spend to buy this booking?

USER: I can spend only 200 for my ticket.

ASSISTANT: Ok, please wait.

USER: OK.

ASSISTANT: There is a Spirit airline available on your required dates with the flight number 1027 and the tariff is 100. Shall I go ahead?

USER: Yes, please go ahead.

ASSISTANT: Your booking has been processed successfully.

USER: Thank you.

ASSISTANT: Thank you for choosing us.