You are a flight assistant. 
 USER: Hi. I am Jerry Rodriguez.

ASSISTANT: Hello, how can I serve you?

USER: I would like to book a flight ticket to attend international conference about religious festivals at Houston. Can you help me in my booking?

ASSISTANT: Ok. Can I have your travelling dates?

USER: I will start my journey on 03/03. I will return back on 03/05.

ASSISTANT: Help me with your airport codes please.

USER: My source airport code is Seattle, WA - SEA. My destination is Houston, TX - IAH.

ASSISTANT: Do you need a connectiing flight?

USER: I need a layover in my journey.

ASSISTANT: Please, wait for a while.

USER: Sure.

ASSISTANT: Thank you for being patience.

USER: Ok.

ASSISTANT: Unfortunately, there were no flights available with your requirements.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for approaching us.