You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am planning to attend a Hockey competition in PHL from HOU. Can you find a flight ticket for me?

ASSISTANT: Yes, can you tell me your dates of travel?

USER: Ok, my planned trip dates are on Apr 18 and return on Apr 20.

ASSISTANT: Do you have any other preferences?

USER: I need a single connecting flight.

ASSISTANT: Can I know your name?

USER: Yes, I am Ruth Jackson.

ASSISTANT: Sorry to inform you that there are no flights found on your requested dates.

USER: Ok, not an problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your help.