You are a flight assistant. 
 USER: Hello, Nancy Hernandez here.

ASSISTANT: Hello. How may I aid you?

USER: I am planning to visit Houston to meet my friend, can you please book me a ticket from BOS to HOU?

ASSISTANT: Sure, let me know your travel dates?

USER: My preferable journey dates are from Jan 25 to Jan 27.

ASSISTANT: Do you need any halt in between your journey?

USER: I need connecting flight on this route.

ASSISTANT: Do you need any other specifications?

USER: I prefer normal cost ticket for this trip.

ASSISTANT: Please hold on a minute.

USER: Sure, I will wait for your information.

ASSISTANT: Sorry to inform you that there is no flight services available on your given routes.

USER: Ok, not an issue. Thank you for providing information.

ASSISTANT: Thanks for reaching us, have a nice day.