You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Margaret Taylor.

ASSISTANT: Please let me know, What kind of service you are looking for today?

USER: I need to book a flight ticket from HOU to attend a business conference at IAH, can you help me booking a flight ticket?

ASSISTANT: Sure, I can help you to make your journey successful.

USER: Thank you so much for your kind response.

ASSISTANT: Let me know when you are willing to travel to book a flight?

USER: I have planned my journey on 01/05 and willing to return back on 01/07.

ASSISTANT: Which flight you have preferred to travel i.e., a connecting flight or a direct flight?

USER: As it is not an emergency, I am comfortable with a connecting flight.

ASSISTANT: At the time of take off and for your return journey, do you have any specific time concern?

USER: I need to return in the evening time.

ASSISTANT:  If you can help me with your name, I can begin looking up for the availability of flights.

USER: Sure. Please reserve my ticket with my name which I have already mentioned above.

ASSISTANT: Sure, I will get back to you in no time.

USER: Sure.

ASSISTANT: Sorry Margaret Taylor, We could not provide you the flights at this moment, due to the run way problem at your destination airport.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us, hope to serve you better next time.