You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

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

ASSISTANT: Sure, I am here to help you with this. Can you please provide your journey dates?

USER: Thank you. My journey dates are on July 28 and return on July 30.

ASSISTANT: Do you have any connection limit preference?

USER: Yes, I want a single connecting flight.

ASSISTANT: May I know your airline preference for this trip?

USER: I am ok with any airlines.

ASSISTANT: Do you have any other specifications for this trip?

USER: No.

ASSISTANT: May I know your good name please?

USER: Yes, I am Charles Walker.

ASSISTANT: Charles Walker, there are no flight services are available on this route on your provided dates.

USER: Ok, not an problem. Thank you for your information.

ASSISTANT: Thank you for contacting us.