You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: May I know the flight availability to Boston, BOS from Houston, HOU, I have to make a trip. Can you help me with the booking?

ASSISTANT: Sure, I am gleeful to help you out. Please share me your trip dates.

USER: Ok, my travel dates are 07/26 and 07/28 respectively.

ASSISTANT: May I know your name to proceed further?

USER: Yes, my name is Kathleen Allen. Please book a flight with 1 connection limit.

ASSISTANT: Sorry Allen, there is no flight in your route.

USER: Not a problem. Thank you for assisting me.

ASSISTANT: Thank you for reaching us.