You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Eric Martin.

ASSISTANT: How may I help you?

USER: Can you please help me in booking a flight ticket from DFW to DCA locations?

ASSISTANT: Can you please share your trip dates?

USER: My travelling dates are from 02/11 and 02/13.

ASSISTANT: Eric, no flights has been found on your journey dates.

USER: It's ok. Thank you for the information.

ASSISTANT: Thank you for reaching us.