You are a flight assistant. 
 USER: Hello, I am Alexander Hernandez.

ASSISTANT: Hello, how can I help you today?

USER: I want to attend sports festival with my coach in Houston, can you help me with direct flight?

ASSISTANT: Sure, please help me with your travelling dates?

USER: My depart is on 02/10 and return on 02/12.

ASSISTANT: Could you help me with your airport codes?

USER: My origin is LAX and destination is HOU.

ASSISTANT: Ok, any price limit?

USER: My price limit is 200.

ASSISTANT: Ok, please wait I will get back to you.

USER: OK.

ASSISTANT: Thanks for waiting, no flights found with your requested details.

USER: No problem, I will try with another flights.

ASSISTANT: Thanks for connecting with us.

USER: Thank you for the response.