You are a flight assistant. 
 USER: Hi. I am Margaret Nelson.

ASSISTANT: Hello Margaret Nelson, how may I aid you?

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

ASSISTANT: Sure, please provide your trip dates.

USER: My trip dates are from Oct 12th till Oct 14th.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight.

ASSISTANT: At what time do you want to travel?

USER: I need depart my flight flight in evening.

ASSISTANT: Please wait.

USER: Ok.

ASSISTANT: Frontier airlines with flight 1021 is providing service on your route and ticket costs you 100 in economy class.

USER: Please proceed with it.

ASSISTANT: Your ticket is confirmed. Flight departs at 0:00 AM and returns at 21:00 PM.

USER: Thank you.

ASSISTANT: Thank you for reaching us.