You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you the best today?

USER: As I am a Doctor, I have an emergency surgery at Seattle, so please help me to book a direct flight.

ASSISTANT: Sure, we are happy to help you.

USER: Thank you.

ASSISTANT: Can you share me your travel dates?

USER: My planned dates are on Oct 10th to 12th.

ASSISTANT: Do you need any break in your journey?

USER: I have already mentioned.

ASSISTANT: Can you share me your airport codes?

USER: My airport codes are LAS - SEA.

ASSISTANT: Is there any class preference?

USER: I am okay with any class.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: May I know your name please?

USER: Sure, my name is Dennis Hernandez.

ASSISTANT: Sorry to inform you that, there are no flights available on your requested dates due to some technical issues.

USER: No issues, thank you.

ASSISTANT: Thank you for opting us.