You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Myself Karen Robinson. I need to travel Seattle, can you please reserve flight ticket from IAH and SEA?

ASSISTANT: Sure, can you please let me know your dates of journey?

USER: My travelling dates are Feb,14 and Feb,16.

ASSISTANT: Do you have any other requirements please?

USER: My depart time should be in the afternoon and return time should be in the evening.

ASSISTANT: May I know your class preference please?

USER: No, I don't need any class specifications.

ASSISTANT: Sorry Karen, there is no flight found as per your travelling details.

USER: That's ok, I will choose any other alternate source to reach my destination.

ASSISTANT: Thank you for reaching us.

USER: Thank you for the information.