You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: My name is Patrick Robinson.

ASSISTANT: Glad to meet you Robinson.

USER: I want to travel from MA-BOS to TX-HOU for attending a seminar.Could you please help me for booking a ticket?

ASSISTANT: Sure, may I know your travelling dates please?

USER: My departure date is 02/05 and return date is 02/07. Make sure my price limit is 1000 and the connections limit is 1.

ASSISTANT: I am sorry there are no flights with your requirements.

USER: Thank you for helping me.

ASSISTANT: Thank you for approaching us.