You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I want to book a connecting flight ticket to meet my old friend's. Can you help me?

ASSISTANT: Sure, let me know your travelling dates?

USER: 12/07 and 12/09 are my travelling dates.

ASSISTANT: May I know your airport codes?

USER: SEA and AUS are my airport codes.

ASSISTANT: Is there any other preferences?

USER: I would like to depart in the morning.

ASSISTANT: May I know your name?

USER: Raymond White.

ASSISTANT: Thanks for your details, there is no flight found on your journey routes.

USER: No issue. Thank you.

ASSISTANT: Thank you.