You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you?

USER: Can you please help me with booking a direct flight to Houston on the name Joshua Rodriguez?

ASSISTANT: Sure, let me know your airport codes.

USER: My preferable airport codes are from ORD to HOU.

ASSISTANT: when are you planning to travel?

USER: I will depart on 02/11 and return back on 02/13.

ASSISTANT: Thanks for sharing your details. There are no flights at this moment.

USER: No issue, thank you for your time.

ASSISTANT: Thank you for opting us.