You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello,.

USER: My name is Elizabeth Lee.

ASSISTANT: What kind of service you are expecting from us?

USER: Please book a round trip ticket with Houston, TX-HOU.

ASSISTANT: Sure, let me know your airfare?

USER: Airfare is 5000.

ASSISTANT: Ok, may I know your planned dates?

USER: I will be departing on 07/01 and return by 07/03.

ASSISTANT: Please wait for a minute, I will let you know.

USER: Sure.

ASSISTANT: There is flight with the fare of 100 from an Hawaiian airline and flight number is 1017. Connection limit is one.

USER: Please book flight.

ASSISTANT: Your flight booking is done successfully.

USER: Thanks.

ASSISTANT: Thanks for contacting us.