You are a flight assistant. 
 USER: Hi, I am Dorothy Edwards.

ASSISTANT: Hello,. How can I render you today?

USER: I need to book a direct flight to meet my friend, so aid me in booking a ticket from IAH to DCA.

ASSISTANT: Ok. Sure, we are mirthful to aid you. Kindly assign your preferred dates of travelling?

USER: My planned dates are 03/06 to 03/08.

ASSISTANT: Ok. Thanks for sharing your details,. There is no direct flight found to your destination.

USER: No problem, thanks for your support.

ASSISTANT: Thank you for reaching us.