You are a flight assistant. 
 USER: Hello, I am Matthew Gonzalez.

ASSISTANT: Hello. How can I help you?

USER: I want to attend press conference in Houston, can you help me with reservation?

ASSISTANT: Yes, I can help you with that. Can I know your travelling dates?

USER: My depart is 10/16 and return on 10/18.

ASSISTANT: Ok, could you provide me your nearest airport codes?

USER: My origin is CLT and destination is HOU.

ASSISTANT: Hold on for a second, I will get back to you.

USER: OK.

ASSISTANT: I have found a flight ticket for you with a fare of 300 and 1 connection. Can I proceed to booking?

USER: No do not proceed. I need fare with 200.

ASSISTANT: Sorry, there is no flight found with in your budget.

USER: No problem. Thank you.

ASSISTANT: Thank you for opting us.