You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Mark Nelson here.

ASSISTANT: In which way I can help you Mark at this moment?

USER: Me and my friend were planned a trip to New York. The ticket is confirmed for my friend but due to some technical issues my ticket is not yet confirmed, so can you reserve a flight ticket again to me?

ASSISTANT: Sure, I am glad to help you in booking flight ticket.

USER: Thank you.

ASSISTANT: Could you please mention your preferable travel dates for booking flight ticket?

USER: Sure, I am planning to move on 10/25 and please book my return ticket on 10/27.

ASSISTANT: Can you please let me know your convenient airport code names to travel?

USER: Sure, my nearest genesis airport code is PHL and my destination airport code is JFK.

ASSISTANT: Ok, please hold on a moment, I will check is there any flight available or not in this route as per your requested dates.

USER: Ok, take your time but please bring a best flight with a less cost in your agency.

ASSISTANT: Sorry for the inconvenience no flights available in this route as per your requested dates. Would you like to change your travel dates?

USER: Oh! So sad to hear that. Anyway, I will choose another alternative to go there. Anyway, thank you for the information.

ASSISTANT: Thank you for visiting us, have a good day.

USER: Most welcome.