customer: Hi. I am Amy Lopez. 
 agent: Hello, how can I assist you? 
 customer: Can you help me in booking from PHL to DFW? 
 agent: Sure, may I know your preferable dates to travel? 
 customer: My travelling dates are 07/09 to 07/11. 
 __ 
 customer: No issue, thank you. 
 agent: You are welcome.
agent: Sorry for the inconvenience, there is no flight available on your requested dates.