You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Joseph Garcia.

ASSISTANT: How may I guide you today, Joseph?

USER: I need to attend my friend's wedding in New York. Can you help me in booking a flight ticket?

ASSISTANT: I would be happy to help you with that, Joseph.

USER: Thank you.

ASSISTANT: Please can you share on what dates your willing  to travel?

USER: Yes, I would like to travel in the flight on 07/06 and 07/08.

ASSISTANT: I need your nearest source airport code?

USER: My source airport code is IAH.

ASSISTANT: Can you please mention your destination code?

USER: My destination code is EWR.

ASSISTANT: Do you have any other specifications?

USER: I am willing to travel in a direct flight.

ASSISTANT: Sure, I will help you with that.

USER: Ok, I will be waiting for your response.

ASSISTANT: I am sorry to say that there is no flight providing service on your requesting route.

USER: That's ok. I will find another way to reach there.

ASSISTANT: Thank you for choosing my agency.

USER: Anyways, thank you for checking.

ASSISTANT: Have a great day.