customer: Hi, my name is Katherine Campbell. 
 agent: Hello, What can I do for you? 
 customer: Could you please make a flight reservation with in the range of 500? 
 agent: Sure, May I know the journey codes? 
 customer: I will start from TX - DFW and reach to CA - OAK. 
 agent: Please help me with your travel dates. 
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 agent: Please give a moment. 
 customer: Ok. 
 agent: Sorry, No flights found with your preferable dates. 
 customer: Ok, thank you. 
 agent: Thank you for reaching us.
customer: My specified dates of travel are 12/07 - 12/09.