You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I'm planning to attend seafood festival, can you please book the ticket from IAH to SEA?

ASSISTANT: Sure, I am happy to help you. Can you please help me with your travelling dates?

USER: My planned departure and return travel dates are 2nd and 4th of April.

ASSISTANT: Do you prefer any stopover in between journey?

USER: I prefer single connected flight to travel.

ASSISTANT: Are there any other specifications for you?

USER: Yes, I want to return in the evening time and I want economy class ticket.

ASSISTANT: May I know your good name?

USER: My name is Samuel King.

ASSISTANT: Sorry, no flights are available on your journey dates.

USER: Oh! That's ok, thank you for giving the information anyways.

ASSISTANT: Thank you for choosing us.