You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am William Thomas from Houston.

ASSISTANT: Welcome to flight booking agency, how can I assist you today?

USER: I need your assistance in booking a flight ticket from my current location to Austin because I have to attend a conference meeting. Can you please help me?

ASSISTANT: May I know your required travelling dates on which you are preferring and comfortable to move?

USER: I have planned to travel on the dates of 11/06 and 11/08.

ASSISTANT: Can you please help me out with your region airport codes that you are looking at your nearest location?

USER: Ok, I want to takeoff from the airport HOS which is near to my location and the landing airport is AUS.

ASSISTANT: Thanks for sharing the required information, I will check with this information which flights are available in our database.

USER: Sure, I can wait for your response. I feel comfortable to travel in the single connecting flight, so please check the flight with this requirement.

ASSISTANT: I am so sorry to inform you, there is some inconvenience with the weather conditions. So, there are no flights available on the dates you have provided to me.

USER: It's ok, not a problem for me. Thank you for spending your valuable time and checking the availability of flight.

ASSISTANT: You are most welcome. Thank you for choosing our travel agency.

USER: Most welcome.