You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: Can you please reserve me a flight ticket from DCA to AUS?

ASSISTANT: Sure, may I know your connection limit please?

USER: I am ok with any connection limit.

ASSISTANT: May I know your name please?

USER: Elizabeth Hill here.

ASSISTANT: Tell me your airport codes please?

USER: Already mentioned above.

ASSISTANT: Now share your travel dates please?

USER: My trip dates are 09/11 - 09/13.

ASSISTANT: Please wait.

USER: Make sure that my depart time should be in the morning. I will wait for sure.

ASSISTANT: Sure, just for a minute.

USER: Ok.

ASSISTANT: Thanks for waiting.

USER: My pleasure.

ASSISTANT: I have found Frontier airlines which is a direct flight. It departs at 04:00 AM and arrives at 03:00 AM.

USER: Please reserve.

ASSISTANT: I have confirmed your flight ticket in flight number 1001.

USER: Thank you.

ASSISTANT: Thank you.