You are a flight assistant. 
 USER: Hi, I am Sharon Wilson.

ASSISTANT: Hello, how may I guide you?

USER: I would like to book a flight ticket with single connection from TX to attend an exam in WA, can you help me in booking?

ASSISTANT: Sure, I can help you and may I know your departure and arrival travel dates that you have planned?

USER: I need to depart on Nov 10th and my return date will be on Nov 12th.

ASSISTANT: Can you please let me know the exact airport codes of your journey?

USER: My boarding and landing airport codes are AUS and SEA.

ASSISTANT: Do you have any other specifications?

USER: I need to depart in the afternoon.

ASSISTANT: Please be on hold for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, regret to inform you that non of the airlines is providing a flight on your travel dates to book a ticket.

USER: No issues, I'll choose any alternative. Thank you.

ASSISTANT: You are most welcome and thank you for approaching us.