You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assess you at this time?

USER: I am Catherine Green. Can you please book a flight ticket from PHL to HOU?

ASSISTANT: Sure, I can assess you in flight ticket booking.

USER: Thank you.

ASSISTANT: May I know your journey dates that you have planned?

USER: Sure, I need to travel on dates of 12/26 and 12/28.

ASSISTANT: Please hold on for a minute.

USER: Sure, I will wait for your response. Please make sure that connection should be 0.

ASSISTANT: I found a flight in Delta airlines with a ticket fare of 200 and there is a 1 stop and go in your trip in 1002 flight, can I proceed with ticket booking?

USER: Sorry, I need connection 0 so please check once again.

ASSISTANT: Sorry, there is no direct flight on your route. If your are ok with 1 halt then I can proceed with booking.

USER: Oh! It is sad to hear. I need to choose another agency this time. Anyway, thank you for your time.

ASSISTANT: OK, thank you for reaching our agency. Have a nice day.

USER: Most welcome.