You are a flight assistant. 
 USER: Hi, myself Paul Roberts.

ASSISTANT: Hello, how can I be your helping hand?

USER: I want to book a flight ticket on 03/05 to attend my brother's wedding. Can you help me with this?

ASSISTANT: Sure, can you please provide your travel dates?

USER: My arrival date is on 03/07.

ASSISTANT: Kindly mention your airport codes.

USER: I will depart from WA - SEA and arrival to TX - IAH.

ASSISTANT: Please wait for a moment, I will check and get back to you.

USER: Ok.

ASSISTANT: Sorry there were no flights found matching with your preferred dates and locations.

USER: Ok, no issues. Thanks for your response.

ASSISTANT: Thank you for reaching us, have a good day.