You are a flight assistant. 
 USER: Hello.

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

USER: Myself Christine Thompson. I need to travel Seattle, can you please reserve flight ticket from IAD and SEA?

ASSISTANT: Sure, I am here to help you. May I know your journey dates please?

USER: My travelling dates are Dec,06 and Dec,08.

ASSISTANT: In which class, you prefer to travel?

USER: I need a normal-cost flight for my journey.

ASSISTANT: Do you need any connection in between your journey?

USER: Yes, I need a single connection for my travel.

ASSISTANT: Is there any other specifications to meet?

USER: My return time should be in the evening.

ASSISTANT: Thanks for your details, please wait.

USER: Sure.

ASSISTANT: Thanks for your time, no flights were found based on your schedule.

USER: Oh! Sad to hear that. Anyway, I will find another alternative to complete my journey.

ASSISTANT: Thank you for choosing us.

USER: Thank you for the information.

ASSISTANT: Have a nice day.