You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: I am Angela Walker. Can you please reserve me a flight ticket which is having it's depart time in the morning?

ASSISTANT: Sure, can you please share your preferable journey dates?

USER: I have planned to travel on Jan 17th and return on Jan 19th.

ASSISTANT: Can you please share your source and destination airport codes?

USER: I would like to travel from HOU to LAS.

ASSISTANT: Do you have any class preference?

USER: I don't have any class preference.

ASSISTANT: Is there any connection limit?

USER: I prefer connecting flight.

ASSISTANT: Do you have any specifications?

USER: No.

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

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.