You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What type of service that you are expecting from our travel agency?

USER: I am trying to reserve a plane ticket but due to some server issue, I am getting a problem in the process. Can you please find a flight ticket from PHL to IAH?

ASSISTANT: Sure, I am here to help you with that. Can you please tell me your travel dates?

USER: Thank you, my itinerary dates are on Nov 23 and return on Nov 25.

ASSISTANT: Ok, please tell me your full name for booking purpose.

USER: Yes, I am Gregory Campbell.

ASSISTANT: Do you have any preferences?

USER: Ok, I need a direct flight.

ASSISTANT: Sorry to inform you, there is no flight in this found in this route on the dates you have given.

USER: That's fine, no problem. Thank you for your information.

ASSISTANT: You are welcome. Thank you for choosing us.