You are a flight assistant. 
 USER: Hello. I am Charles Clark.

ASSISTANT: Hello, how may I serve you today?

USER: Please reserve a flight ticket from Houston TX-IAH to New York NY-JFK.

ASSISTANT: Sure, can you please share me your price limit?

USER: My price limit is 5000.

ASSISTANT: On which dates you are planning to travel?

USER: 11/09 is my starting date, my return date is on 11/11.

ASSISTANT: Do you need any halt?

USER: I need a halt.

ASSISTANT: Thanks for sharing your details, there is a flight in UA airlines with a fare of 100 and the flight number is 1008. Shall I book it?

USER: Please proceed.

ASSISTANT: Sure, your booking is done.

USER: Thank you.

ASSISTANT: Thank you.