You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Nicholas Lopez.

ASSISTANT: How may I guide you?

USER: Can you succor me with the flight ticket booking for the month of June?

ASSISTANT: Sure Lopez, can you please share me your source airport code and my destination airport code?

USER: Yes, I want to visit the Downtown Aquarium in Houston, TX - IAH and the origin airport code is TX - AUS. Can you help?

ASSISTANT: When you are willing to travel?

USER: As I had said I will be travel on 06/09 and please book a return ticket which is on 06/11.

ASSISTANT: Sure, please wait for a while.

USER: Ok, I will wait for your response.

ASSISTANT: Sorry for inconvenience, no flights is available on your preferred dates.

USER: That is not good to hear, anyways you have done your best to help me thank you for that.

ASSISTANT: You are welcome, thank you very much for contacting our agency.