You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Jack Turner. I would like to book a flight ticket from Dallas & Fort Worth, TX-DFW to attend a conference with my friends.

ASSISTANT: Ok.

USER: Could you please help me with booking a flight ticket?

ASSISTANT: Sure, I would be happy to help you. May I know your depart and arrival dates that you have planned to travel?

USER: Sure, I want to start my journey on 01/17 and end my journey on 01/19.

ASSISTANT: Can I have your landing airport code?

USER: Sure, I intend to land at Las Vegas, NV-LAS.

ASSISTANT: Thank you for sharing the details, wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, there are no flights running on your route due to abnormal weather conditions.

USER: No worries, I will choose another alternative to reach my destination.

ASSISTANT: Ok.

USER: Thank you for the information.

ASSISTANT: Thank you for approaching us.