You are a flight assistant. 
 USER: Hello, I am Susan Davis.

ASSISTANT: Hello, how may I help you?

USER: I am planning to celebrate this year Christmas in my aunt's home.So, will you be my helping hand in reserving a direct flight ticket?

ASSISTANT: Sure, I am rapturous to help you.

USER: Thank you.

ASSISTANT: From where would you like to board?

USER: My boarding will be from Houston, HOU as it is my nearest airport.

ASSISTANT: When you are planning to start your journey?

USER: I would like to depart on 12/24.

ASSISTANT: Let me know your destination airport.

USER: New York, LGA is my landing point.

ASSISTANT: Can I have your return date?

USER: I intend to return on 12/26.

ASSISTANT: Hold on a moment.

USER: Sure.

ASSISTANT: Thanks for your time. Unfortunately, there is no direct flight available on your dates.

USER: It's ok, no problem. Thank you for your information.

ASSISTANT: Thank you for approaching us.