You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am planning to visit Seattle to meet my client, can you please book me a ticket from HOU to SEA?

ASSISTANT: Sure, will you provide your travelling dates please?

USER: My travelling dates are from 06/09 to 06/11.

ASSISTANT: Please give me a moment.

USER: Sure, please find me a direct flight.

ASSISTANT: Please mention the name for processing.

USER: My name is Melissa Davis.

ASSISTANT: There is no flights found under your details.

USER: Ok, not an issue. I will find any alternate for this trip. Thank you for providing information.

ASSISTANT: Thank you for reaching us. Have a great day.