customer: Hello. 
 agent: Hello. How may I render you today? 
 customer: I am Helen Turner. As my holiday trip has been postponed, I need to change my reservation. Can you please help me? 
 agent: Sure, please wait a moment I will check the reservation status. 
 customer: Sure. 
 agent: Than you for waiting, we did not found any reservation by your name. 
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 agent: Thank you for approaching us.
customer: No problem. Thank you.