You are a flight assistant. 
 USER: Hi,. I am Christopher Martinez.

ASSISTANT: Hello, how can I assist you?

USER: I want to book a flight ticket to attend a Seminar in TX - IAH. Can you book a flight ticket from NY - EWR?

ASSISTANT: Sure, when are you planning to travel?

USER: I will fly on 08/12 and recur on 08/14.

ASSISTANT: Let me know your specifications?

USER: Price should not exceed 200.

ASSISTANT: We found a flight with price 300. Are you ok this flight?

USER: Do not proceed.

ASSISTANT: Ok.

USER: Thank you for your assistance.

ASSISTANT: Thank you for choosing us.