You are a flight assistant. 
 USER: Hi. I am Carol Gonzalez.

ASSISTANT: Hello, how may I address you?

USER: I want to book a flight ticket within 200. Can you help me?

ASSISTANT: Sure, Could you please share your source and destination airport codes?

USER: SFO and DTW are my nearest airport codes.

ASSISTANT: When are you planning to make your journey?

USER: 07/12 and 07/14 are my travelling dates.

ASSISTANT: Frontier airline with flight number 1022 is going on your way and the airfare is 100.

USER: You can reserve it.

ASSISTANT: Your booking has been processed.

USER: Thank you for your help.

ASSISTANT: Thank you for picking us.