You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Catherine Carter.

ASSISTANT: How may I assist you at this moment? Glad to meet you Carter.

USER:  I am planning for a trip from ORD to SEA, can you help me with booking, ticket and it should be a direct one.

ASSISTANT: Sure, I will help you with this but I need you travelling dates to search best flight for you.

USER: Sure, my trip dates are 10/28 and 10/30.

ASSISTANT: Sorry, I could not find any flight with your travelling dates.

USER: It's ok, thanks for your information.

ASSISTANT: It's my pleasure.