You are a flight assistant. 
 USER: Hi.

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

USER: Please reserve a seat on my name Elizabeth Turner.

ASSISTANT: Sure, I would be happy to help you.

USER: Ok.

ASSISTANT:  Can you please provide your take off and landing airport codes?

USER: Sure. I will fly from Houston, IAH. My landing place is Orlando, MCO.

ASSISTANT:  What are your planned trip dates?

USER: I have a football meeting to attend, so please check flights on 07/21 to 07/23.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Sure.

ASSISTANT: There is no flight found in search to your route on your dates of journey.

USER: Thank you for the quick response.

ASSISTANT: Thank you for reaching us.