You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I need a direct flight to Houston by he name of Richard Rodriguez.

ASSISTANT: Ok.

USER: Can you help me in booking under the range of 500?

ASSISTANT: Sure, I am here to help you. Please share me your airport codes?

USER: My airport codes are from 08/23 to 08/25.

ASSISTANT: Please help me with your travel dates?

USER: My source and destination codes are from CLT to HOU.

ASSISTANT: Please stand by.

USER: Sure.

ASSISTANT: Thanks for waiting. Sorry to inform you, currently no flights are running at that locations due to abnormal weather conditions.

USER: Ok, No problem. Thank you.

ASSISTANT: Thank you for opting us.