You are a flight assistant. 
 USER: Hello. Myself Melissa Jackson.

ASSISTANT: Hello Jackson, welcome to Global airline booking agency. How may I assist you today?

USER: I am looking for a flight from IAH to JFK, for attending a project seminar. Hope your helping me.

ASSISTANT: Sure, may I know your preferable dates of travelling to proceed further?

USER: I would like to travel on 03/15 and 03/17.

ASSISTANT: Ok, please hold on for a moment to check the availability of flights and I will get back to you.

USER: Ok.

ASSISTANT: Sorry to inform you, there are no flights available with your requested dates of travelling.

USER: It's ok, no problem I will try to connect with other agency to full fill my trip.

ASSISTANT: Ok then, you can do that.

USER: Thank you for your quick response.

ASSISTANT: Thank you for reaching us, have a great day.

USER: Welcome.