You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Gary Harris here.

ASSISTANT: How may I guide you today?

USER: I'm planning to visit mu uncle's home at IAD, can you book a ticket from ORD?

ASSISTANT: Sure, I will help you with that. Can you please share your preferable journey dates?

USER: Sure, my planned departure and return travel dates are 29th June and 1st July.

ASSISTANT: Do you have any specifications?

USER: Yes, my depart time is evening.

ASSISTANT: Is there any connection limit?

USER: Yes, my connection limit is 1.

ASSISTANT: I am sorry to say that there is no flight found under your details.

USER: Oh! That's ok, thank you for giving the information.

ASSISTANT: Thank you for reaching us.