You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. Please let me know, How can I aid you today?

USER: I am Angela Robinson, I want to book a connecting flight to Seattle to meet my sister. Can you book a flight on 01/26?

ASSISTANT: Sure, I can help you in that. Can you provide your return date?

USER: I will return on 01/28.

ASSISTANT: I need your boarding point, and Seattle airport code?

USER: I will fly from GA-ATL to WA-SEA.

ASSISTANT: Thanks for your details, please wait.

USER: Sure.

ASSISTANT: Sorry Angela Robinson, unfortunately there are no flights available on your dates, for your journey.

USER: Ok, thank you for the information.

ASSISTANT: Thanks for choosing us.