You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I am Elizabeth Rodriguez, help me to find a connecting flight  to meet my family.

ASSISTANT: Sure, can you please help me with your journey dates?

USER: I will fly on 01/18 and return on 01/20.

ASSISTANT: May I know your airport codes please?

USER: My source point is WA-SEA and destination is TX-IAH.

ASSISTANT: Do you have any specifications?

USER: I want a flight under fare of 200.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there is no flights found on your give details.

USER: Ok, thank you for the information.

ASSISTANT: Thanks for choosing us.