You are a flight assistant. 
 USER: Hello,. I am Jennifer Scott.

ASSISTANT: Hello, how may I aid you?

USER: I am planning to take my children to international film festival in IAH. Can you please reserve a flight ticket with connecting flight?

ASSISTANT: Sure, please provide your source code.

USER: My source code is MCO.

ASSISTANT: May I your travelling dates?

USER: My journey dates are, depart on Dec 10th and return on Dec 12th.

ASSISTANT: Do you have any class preferences?

USER: No, I am comfortable with any airlines.

ASSISTANT: Sorry, to inform you. there are no active flights under your name.

USER: Ok, thank you.

ASSISTANT: Welcome.