customer: Hi. Daniel Johnson is my name. 
 agent: Hello, how may I assist you? 
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 agent: Sure, Can you please let me know your travelling dates? 
 customer: 06/24 and 06/26 are my travelling details. 
 agent: Thank you for your details, please wait, let me search a flight for you. 
 customer: OK sure. 
 agent: Thank you for waiting, sorry to inform you that unfortunately there is no flights available by the given details. 
 customer: Ok, no problem. Thank you. 
 agent: Thank you for reaching us.
customer: Book an economy class ticket from JFK to SFO.