You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, do you need any help from us?

USER: I would like to reserve my ticket from LAS to HOU. Can you please help me with booking a flight ticket?

ASSISTANT: Sure, could you please share your departure and arrival day?

USER: My departure and arrival dates are Aug 25 and Aug 27.

ASSISTANT: Ok, could I have your name please?

USER: Sure, myself Andrew Edwards.

ASSISTANT: Ok, do you need direct or connecting flight?

USER: I need a connecting flight in my journey.

ASSISTANT: Ok, do you have any other specifications?

USER: My depart time should be in the morning.

ASSISTANT: Sorry, there is no flight on your requested travelling dates.

USER: That's ok, no problem. Thank you for the information.

ASSISTANT: You are welcome, have a great day.