You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Catherine Phillips.

ASSISTANT: Catherine Phillips, how may I aid you?

USER: I am looking for a flight from DFW to HOU, can you help me out?

ASSISTANT: Sure, please provide your itinerary dates.

USER: My trip dates are from Sept 4th till Sept 6th.

ASSISTANT: Do you have any specifications?

USER: I need a direct flight.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry, no direct flight is available on your route.

USER: That's ok, not an issue. Thank you.

ASSISTANT: Thank you for reaching us.