You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,.

USER: I am Carol Mitchell.

ASSISTANT: How may I help you?

USER: Can you help me to find a flight from IAD to IAH?

ASSISTANT: Ok. Could you please let me know your travel dates?

USER: My travelling dates are 08/03 and 08/05.

ASSISTANT: Sorry, no flights found with your travelling dates.

USER: That's fine, thanks for your information.

ASSISTANT: Thank you. Have a nice day!.