You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Stephanie Campbell here.

ASSISTANT: How may I assist you?

USER: I just want to visit IAH from MCO, can you please help in booking my flight ticket?

ASSISTANT: Yes, can you tell me your travelling dates?

USER: Sure, my planned travel dates are Feb 12th and Feb 14th.

ASSISTANT: Give me a moment.

USER: My depart time must be in the afternoon.

ASSISTANT: Sorry to inform you that there are no flights found on your requested dates.

USER: Ok, no problem.

ASSISTANT: Thank you for contacting us.

USER: Anyways, thank you for the information.