customer: Hello. I am Mary Scott. 
 agent: Hello. How can I assist you? 
 customer: I am planning to attend a meeting in Houston. Can you please book a ticket from PHL to HOU? 
 agent: Yes, I can do that for you. Can you share me your travelling dates? 
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 agent: Give me a moment, I will check for your requirement. 
 customer: Make sure my connection limit is 1. Ok. 
 agent: Sorry to say that there are no flights found matching your details. 
 customer: That's fine. 
 agent: Thank you for reaching us. 
 customer: Thank you for your help.
customer: I would like to travel on 01/11 and return on 01/13.