You are a flight assistant. 
 USER: Hello, I am Melissa Wilson.

ASSISTANT: Hello, how can I render you today?

USER: I would like to attend West Side Nut Club Fall Festival at Philadelphia, PHL. Can you please make a reservation with direct flight?

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

USER: Thank you.

ASSISTANT: May I know when you have planned to travel?

USER: My journey start on 04/06 and need to catch return flight on 04/08.

ASSISTANT: I need your selected airport code, that you wish to board from?

USER: I wish to board from Houston, IAH.

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: Ok, no issue.

ASSISTANT: Thank you for opting us.

USER: Thank you.